KDE – How to Fix Mime-Type File Association Not Saving

I'm running Arch Linux and KDE and I am exploring how mime-types are behaving (and misbehaving) on my system.

Consider this mime-type file association. The following console output shows that I have the mime-type xml definition file and there is an association between .pub files and the mime-type application/vnd.ms-publisher.

$ xdg-mime query filetype ~/.ssh/id_rsa_test.pub
application/vnd.ms-publisher

$ less mimeapps.list
[Added Associations]
application/vnd.ms-publisher=org.kde.kate.desktop;

# find /usr -name vnd.ms-publisher.xml
/usr/share/mime/application/vnd.ms-publisher.xml

# less /usr/share/mime/application/vnd.ms-publisher.xml

<?xml version="1.0" encoding="utf-8"?>
<mime-type xmlns="http://www.freedesktop.org/standards/shared-mime-info" type="application/vnd.ms-publisher">
<!--Created automatically by update-mime-database. DO NOT EDIT!-->
<sub-class-of type="application/x-ole-storage"/>
<glob pattern="*.pub"/>
</mime-type>

(I do not like the fact that ms-publisher is associated with public keys on my Linux system, but that's the topic of another question.)

It would appear from the above that all is in order.

Next I decided to add an association for Kate (text editor) to handle .pub public key files. I created this using KDE System Settings > Applications > File Associations.

This screen shot shows what I did. When I clicked "Apply" the progress dialog appears briefly and the action seems to have succeeded.

However, upon revisiting that same dialog, the Kate association I just added is gone. The box under "Application Preference Order" is empty.

My question is: what is causing this file association to not be saved, and how can I fix it?

Checking journalctl -r I found the following messages (in reverse order). All lines start with a prefix simlarl to Jan 31 17:24:18 laptop systemsettings5[20318] but I removed most of those to save space.

Jan 31 17:24:19 laptop systemsettings5[20318]: Mimetype Comment Dirty: old= "Kindle book document" m_comment= "Amazon KF8 ebook format"
Jan 31 17:24:19 laptop systemsettings5[20318]: Mimetype Comment Dirty: old= "ODB database" m_comment= "OpenDocument Database"
Jan 31 17:24:19 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found
Jan 31 17:24:19 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found
Jan 31 17:24:19 laptop systemsettings5[20318]: ("services", "servicetypes", "xdgdata-mime", "apps")

...

Jan 31 17:24:18 laptop systemsettings5[20318]: "application/vnd.ms-publisher" hasDefinitionFile: false
kf5.kservice.sycoca: Service type not found: "audio/x-xm"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.presentation-template"
kf5.kservice.sycoca: Service type not found: "text/x-rst"
kf5.kservice.sycoca: Service type not found: "application/pdf"
kf5.kservice.sycoca: Service type not found: "application/x-bzip"
kf5.kservice.sycoca: Service type not found: "application/x-cue"
kf5.kservice.sycoca: Service type not found: "image/x-rgb"
kf5.kservice.sycoca: Service type not found: "application/x-gzpdf"
kf5.kservice.sycoca: Service type not found: "application/x-cmakecache"
kf5.kservice.sycoca: Service type not found: "image/x-sigma-x3f"
kf5.kservice.sycoca: Service type not found: "application/x-tellico"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.spreadsheet-flat-xml"
kf5.kservice.sycoca: Service type not found: "application/x-mswrite"
kf5.kservice.sycoca: Service type not found: "application/x-t602"
kf5.kservice.sycoca: Service type not found: "image/x-nikon-nef"
kf5.kservice.sycoca: Service type not found: "video/x-flic"
kf5.kservice.sycoca: Service type not found: "x-content/video-vcd"
kf5.kservice.sycoca: Service type not found: "audio/flac"
kf5.kservice.sycoca: Service type not found: "application/xspf+xml"
kf5.kservice.sycoca: Service type not found: "image/svg+xml"
kf5.kservice.sycoca: Service type not found: "application/x-tar"
kf5.kservice.sycoca: Service type not found: "image/x-xpixmap"
kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.calc"
kf5.kservice.sycoca: Service type not found: "application/gzip"
kf5.kservice.sycoca: Service type not found: "application/x-zip-compressed-fb2"
kf5.kservice.sycoca: Service type not found: "application/x-compressed-tar"
kf5.kservice.sycoca: Service type not found: "audio/x-wavpack"
kf5.kservice.sycoca: Service type not found: "video/vnd.rn-realvideo"
kf5.kservice.sycoca: Service type not found: "image/x-pic"
kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.draw"
kf5.kservice.sycoca: Service type not found: "audio/x-pn-realaudio-plugin"
kf5.kservice.sycoca: Service type not found: "application/x-kexi-connectiondata"
kf5.kservice.sycoca: Service type not found: "application/x-mobipocket-ebook"
kf5.kservice.sycoca: Service type not found: "audio/ac3"
kf5.kservice.sycoca: Service type not found: "application/vnd.openofficeorg.extension"
kf5.kservice.sycoca: Service type not found: "image/x-win-bitmap"
kf5.kservice.sycoca: Service type not found: "application/vnd.kde.okular-archive"
kf5.kservice.sycoca: Service type not found: "application/x-zstd-compressed-tar"
kf5.kservice.sycoca: Service type not found: "audio/mpeg"
kf5.kservice.sycoca: Service type not found: "video/mlt-playlist"
kf5.kservice.sycoca: Service type not found: "image/x-kde-raw"
kf5.kservice.sycoca: Service type not found: "application/x-7z-compressed"
kf5.kservice.sycoca: Service type not found: "audio/vnd.rn-realaudio"
kf5.kservice.sycoca: Service type not found: "image/x-panasonic-rw"
kf5.kservice.sycoca: Service type not found: "text/x-patch"
kf5.kservice.sycoca: Service type not found: "application/x-kdenlivetitle"
kf5.kservice.sycoca: Service type not found: "application/vnd.lotus-1-2-3"
kf5.kservice.sycoca: Service type not found: "x-content/blank-cd"
kf5.kservice.sycoca: Service type not found: "application/vnd.ms-asf"
kf5.kservice.sycoca: Service type not found: "video/quicktime"
kf5.kservice.sycoca: Service type not found: "image/vnd.djvu"
kf5.kservice.sycoca: Service type not found: "video/x-anim"
kf5.kservice.sycoca: Service type not found: "text/plain"
kf5.kservice.sycoca: Service type not found: "application/x-java-keystore"
kf5.kservice.sycoca: Service type not found: "application/x-archive"
kf5.kservice.sycoca: Service type not found: "application/x-sv4crc"
kf5.kservice.sycoca: Service type not found: "application/vnd.appimage"
kf5.kservice.sycoca: Service type not found: "application/vnd.visio"
kf5.kservice.sycoca: Service type not found: "image/x-tga"
kf5.kservice.sycoca: Service type not found: "application/x-zoom"
kf5.kservice.sycoca: Service type not found: "image/heif"
kf5.kservice.sycoca: Service type not found: "image/rle"
kf5.kservice.sycoca: Service type not found: "text/csv"
kf5.kservice.sycoca: Service type not found: "application/vnd.ms-cab-compressed"
kf5.kservice.sycoca: Service type not found: "application/vnd.lotus-wordpro"
kf5.kservice.sycoca: Service type not found: "application/x-xar"
kf5.kservice.sycoca: Service type not found: "audio/aac"
kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.presentationml.template"
kf5.kservice.sycoca: Service type not found: "image/x-icns"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.presentation"
kf5.kservice.sycoca: Service type not found: "audio/x-tta"
kf5.kservice.sycoca: Service type not found: "application/x-cbt"
kf5.kservice.sycoca: Service type not found: "image/tiff"
kf5.kservice.sycoca: Service type not found: "application/ogg"
kf5.kservice.sycoca: Service type not found: "application/vnd.ms-wpl"
kf5.kservice.sycoca: Service type not found: "image/x-pentax-pef"
kf5.kservice.sycoca: Service type not found: "image/x-olympus-orf"
kf5.kservice.sycoca: Service type not found: "application/vnd.ms-excel"
kf5.kservice.sycoca: Service type not found: "application/pgp-keys"
kf5.kservice.sycoca: Service type not found: "image/x-jng"
kf5.kservice.sycoca: Service type not found: "application/x-lz4-compressed-tar"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text-master"
kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.impress.template"
kf5.kservice.sycoca: Service type not found: "application/x-font-pcf"
kf5.kservice.sycoca: Service type not found: "application/xhtml+xml"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text"
kf5.kservice.sycoca: Service type not found: "application/x-java"
kf5.kservice.sycoca: Service type not found: "image/x-sgi"
kf5.kservice.sycoca: Service type not found: "audio/basic"
kf5.kservice.sycoca: Service type not found: "application/x-executable"
kf5.kservice.sycoca: Service type not found: "text/spreadsheet"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.spreadsheet-template"
kf5.kservice.sycoca: Service type not found: "audio/x-ms-wma"
kf5.kservice.sycoca: Service type not found: "image/x-fuji-raf"
kf5.kservice.sycoca: Service type not found: "application/x-compress"
kf5.kservice.sycoca: Service type not found: "audio/vnd.dts"
kf5.kservice.sycoca: Service type not found: "image/fits"
kf5.kservice.sycoca: Service type not found: "application/x-xz"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.formula-template"
kf5.kservice.sycoca: Service type not found: "image/gif"
kf5.kservice.sycoca: Service type not found: "audio/x-ms-asx"
kf5.kservice.sycoca: Service type not found: "video/x-mng"
kf5.kservice.sycoca: Service type not found: "image/x-gimp-gbr"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.chart-template"
kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
kf5.kservice.sycoca: Service type not found: "application/x-bzpdf"
kf5.kservice.sycoca: Service type not found: "image/png"
kf5.kservice.sycoca: Service type not found: "application/x-gzdvi"
kf5.kservice.sycoca: Service type not found: "application/mxf"
kf5.kservice.sycoca: Service type not found: "application/x-wpg"
kf5.kservice.sycoca: Service type not found: "image/x-xwindowdump"
kf5.kservice.sycoca: Service type not found: "image/x-dcraw"
kf5.kservice.sycoca: Service type not found: "audio/x-mpegurl"
kf5.kservice.sycoca: Service type not found: "x-content/audio-player"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text-web"
kf5.kservice.sycoca: Service type not found: "x-content/blank-dvd"
kf5.kservice.sycoca: Service type not found: "image/cgm"
kf5.kservice.sycoca: Service type not found: "application/x-fictionbook+xml"
kf5.kservice.sycoca: Service type not found: "application/vnd.palm"
kf5.kservice.sycoca: Service type not found: "video/webm"
kf5.kservice.sycoca: Service type not found: "image/wmf"
kf5.kservice.sycoca: Service type not found: "text/tab-separated-values"
kf5.kservice.sycoca: Service type not found: "application/x-pagemaker"
kf5.kservice.sycoca: Service type not found: "application/vnd.comicbook-rar"
kf5.kservice.sycoca: Service type not found: "image/openraster"
kf5.kservice.sycoca: Service type not found: "application/illustrator"
kf5.kservice.sycoca: Service type not found: "application/vnd.ms-publisher"
kf5.kservice.sycoca: Service type not found: "application/msword"
kf5.kservice.sycoca: Service type not found: "application/x-krita"
kf5.kservice.sycoca: Service type not found: "application/x-dvi"
kf5.kservice.sycoca: Service type not found: "image/x-portable-bitmap"
kf5.kservice.sycoca: Service type not found: "audio/AMR"
kf5.kservice.sycoca: Service type not found: "application/x-cpio"
kf5.kservice.sycoca: Service type not found: "image/webp"
kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.writer"
kf5.kservice.sycoca: Service type not found: "text/css"
kf5.kservice.sycoca: Service type not found: "image/x-adobe-dng"
kf5.kservice.sycoca: Service type not found: "image/x-eps"
kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.draw.template"
kf5.kservice.sycoca: Service type not found: "image/x-compressed-xcf"
kf5.kservice.sycoca: Service type not found: "application/x-bzip-compressed-tar"
kf5.kservice.sycoca: Service type not found: "application/x-quattropro"
kf5.kservice.sycoca: Service type not found: "application/x-ms-dos-executable"
kf5.kservice.sycoca: Service type not found: "application/vnd.ms-access"
kf5.kservice.sycoca: Service type not found: "application/vnd.ms-powerpoint"
kf5.kservice.sycoca: Service type not found: "application/x-sv4cpio"
kf5.kservice.sycoca: Service type not found: "audio/mp4"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.chart"
kf5.kservice.sycoca: Service type not found: "application/x-lrzip-compressed-tar"
kf5.kservice.sycoca: Service type not found: "application/vnd.comicbook+zip"
kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.writer.global"
kf5.kservice.sycoca: Service type not found: "application/vnd.apple.mpegurl"
kf5.kservice.sycoca: Service type not found: "application/x-xojpp"
kf5.kservice.sycoca: Service type not found: "application/x-bzdvi"
kf5.kservice.sycoca: Service type not found: "image/x-gimp-pat"
kf5.kservice.sycoca: Service type not found: "image/x-gimp-gih"
kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.math"
kf5.kservice.sycoca: Service type not found: "image/vnd.zbrush.pcx"
kf5.kservice.sycoca: Service type not found: "video/x-flv"
kf5.kservice.sycoca: Service type not found: "x-content/audio-cdda"
kf5.kservice.sycoca: Service type not found: "image/jpeg"
kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.calc.template"
kf5.kservice.sycoca: Service type not found: "image/x-sony-arw"
kf5.kservice.sycoca: Service type not found: "image/emf"
kf5.kservice.sycoca: Service type not found: "image/x-sony-srf"
kf5.kservice.sycoca: Service type not found: "image/x-panasonic-rw2"
kf5.kservice.sycoca: Service type not found: "application/prs.plucker"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.graphics-flat-xml"
kf5.kservice.sycoca: Service type not found: "video/dv"
kf5.kservice.sycoca: Service type not found: "application/x-trash"
kf5.kservice.sycoca: Service type not found: "application/pgp-encrypted"
kf5.kservice.sycoca: Service type not found: "image/x-dds"
kf5.kservice.sycoca: Service type not found: "image/x-xcursor"
kf5.kservice.sycoca: Service type not found: "audio/midi"
kf5.kservice.sycoca: Service type not found: "image/x-kodak-dcr"
kf5.kservice.sycoca: Service type not found: "application/vnd.rn-realmedia"
kf5.kservice.sycoca: Service type not found: "application/smil+xml"
kf5.kservice.sycoca: Service type not found: "application/x-font-bdf"
kf5.kservice.sycoca: Service type not found: "application/octet-stream"
kf5.kservice.sycoca: Service type not found: "application/x-k3b"
kf5.kservice.sycoca: Service type not found: "audio/x-it"
kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
kf5.kservice.sycoca: Service type not found: "application/x-bzpostscript"
kf5.kservice.sycoca: Service type not found: "application/vnd.amazon.mobi8-ebook"
kf5.kservice.sycoca: Service type not found: "application/vnd.rar"
kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.impress"
kf5.kservice.sycoca: Service type not found: "audio/x-musepack"
kf5.kservice.sycoca: Service type not found: "image/x-sun-raster"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.graphics-template"
kf5.kservice.sycoca: Service type not found: "application/pgp-signature"
kf5.kservice.sycoca: Service type not found: "application/zip"
kf5.kservice.sycoca: Service type not found: "application/x-cd-image"
kf5.kservice.sycoca: Service type not found: "application/x-rpm"
kf5.kservice.sycoca: Service type not found: "application/mathml+xml"
kf5.kservice.sycoca: Service type not found: "image/x-xcf"
kf5.kservice.sycoca: Service type not found: "video/x-nsv"
kf5.kservice.sycoca: Service type not found: "audio/x-scpls"
kf5.kservice.sycoca: Service type not found: "audio/x-speex"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.presentation-flat-xml"
kf5.kservice.sycoca: Service type not found: "application/x-shorten"
kf5.kservice.sycoca: Service type not found: "audio/x-wav"
kf5.kservice.sycoca: Service type not found: "image/x-canon-cr2"
kf5.kservice.sycoca: Service type not found: "application/epub+zip"
kf5.kservice.sycoca: Service type not found: "image/x-photo-cd"
kf5.kservice.sycoca: Service type not found: "audio/x-adpcm"
kf5.kservice.sycoca: Service type not found: "font/ttf"
kf5.kservice.sycoca: Service type not found: "application/vnd.stardivision.writer"
kf5.kservice.sycoca: Service type not found: "image/jp2"
kf5.kservice.sycoca: Service type not found: "x-content/video-svcd"
kf5.kservice.sycoca: Service type not found: "application/javascript"
kf5.kservice.sycoca: Service type not found: "image/bmp"
kf5.kservice.sycoca: Service type not found: "image/x-portable-anymap"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text-master-template"
kf5.kservice.sycoca: Service type not found: "application/vnd.ms-htmlhelp"
kf5.kservice.sycoca: Service type not found: "audio/x-gsm"
kf5.kservice.sycoca: Service type not found: "video/mp4"
kf5.kservice.sycoca: Service type not found: "application/sdp"
kf5.kservice.sycoca: Service type not found: "image/x-xbitmap"
kf5.kservice.sycoca: Service type not found: "application/xml"
kf5.kservice.sycoca: Service type not found: "image/x-bzeps"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text-template"
kf5.kservice.sycoca: Service type not found: "video/x-msvideo"
kf5.kservice.sycoca: Service type not found: "application/x-xpinstall"
kf5.kservice.sycoca: Service type not found: "image/svg+xml-compressed"
kf5.kservice.sycoca: Service type not found: "application/x-iwork-keynote-sffkey"
kf5.kservice.sycoca: Service type not found: "application/vnd.debian.binary-package"
kf5.kservice.sycoca: Service type not found: "application/x-matroska"
kf5.kservice.sycoca: Service type not found: "audio/x-s3m"
kf5.kservice.sycoca: Service type not found: "application/x-ksysguard"
kf5.kservice.sycoca: Service type not found: "application/x-keepass2"
kf5.kservice.sycoca: Service type not found: "audio/mp2"
kf5.kservice.sycoca: Service type not found: "image/x-kodak-k25"
kf5.kservice.sycoca: Service type not found: "x-content/blank-hddvd"
kf5.kservice.sycoca: Service type not found: "text/x-google-video-pointer"
kf5.kservice.sycoca: Service type not found: "application/vnd.sun.xml.writer.template"
kf5.kservice.sycoca: Service type not found: "x-content/blank-bd"
kf5.kservice.sycoca: Service type not found: "text/html"
kf5.kservice.sycoca: Service type not found: "application/vnd.ms-works"
kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.presentationml.slide"
kf5.kservice.sycoca: Service type not found: "audio/x-flac+ogg"
kf5.kservice.sycoca: Service type not found: "application/x-gzpostscript"
kf5.kservice.sycoca: Service type not found: "text/vcard"
kf5.kservice.sycoca: Service type not found: "image/x-sony-sr2"
kf5.kservice.sycoca: Service type not found: "inode/directory"
kf5.kservice.sycoca: Service type not found: "application/x-xopp"
kf5.kservice.sycoca: Service type not found: "application/x-kdenlive"
kf5.kservice.sycoca: Service type not found: "application/vnd.corel-draw"
kf5.kservice.sycoca: Service type not found: "application/vnd.wordperfect"
kf5.kservice.sycoca: Service type not found: "image/x-minolta-mrw"
kf5.kservice.sycoca: Service type not found: "application/vnd.sqlite3"
kf5.kservice.sycoca: Service type not found: "image/x-portable-pixmap"
kf5.kservice.sycoca: Service type not found: "text/vnd.qt.linguist"
kf5.kservice.sycoca: Service type not found: "image/x-canon-crw"
kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.presentationml.slideshow"
kf5.kservice.sycoca: Service type not found: "x-content/video-dvd"
kf5.kservice.sycoca: Service type not found: "application/vnd.kde.fontspackage"
kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.wordprocessingml.template"
kf5.kservice.sycoca: Service type not found: "application/oxps"
kf5.kservice.sycoca: Service type not found: "application/x-khtml-adaptor"
kf5.kservice.sycoca: Service type not found: "video/mp2t"
kf5.kservice.sycoca: Service type not found: "application/vnd.adobe.flash.movie"
kf5.kservice.sycoca: Service type not found: "audio/x-mod"
kf5.kservice.sycoca: Service type not found: "image/vnd.rn-realpix"
kf5.kservice.sycoca: Service type not found: "application/postscript"
kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.spreadsheetml.template"
kf5.kservice.sycoca: Service type not found: "image/vnd.adobe.photoshop"
kf5.kservice.sycoca: Service type not found: "application/x-lzma"
kf5.kservice.sycoca: Service type not found: "audio/AMR-WB"
kf5.kservice.sycoca: Service type not found: "audio/x-aiff"
kf5.kservice.sycoca: Service type not found: "image/x-portable-graymap"
kf5.kservice.sycoca: Service type not found: "text/markdown"
kf5.kservice.sycoca: Service type not found: "application/x-bcpio"
kf5.kservice.sycoca: Service type not found: "application/x-lzip-compressed-tar"
kf5.kservice.sycoca: Service type not found: "video/x-matroska"
kf5.kservice.sycoca: Service type not found: "application/vnd.openxmlformats-officedocument.presentationml.presentation"
kf5.kservice.sycoca: Service type not found: "audio/x-stm"
kf5.kservice.sycoca: Service type not found: "audio/prs.sid"
kf5.kservice.sycoca: Service type not found: "audio/x-ape"
kf5.kservice.sycoca: Service type not found: "application/x-designer"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.graphics"
kf5.kservice.sycoca: Service type not found: "image/vnd.microsoft.icon"
kf5.kservice.sycoca: Service type not found: "text/x-ldif"
kf5.kservice.sycoca: Service type not found: "application/x-kexiproject-shortcut"
kf5.kservice.sycoca: Service type not found: "application/x-font-type1"
kf5.kservice.sycoca: Service type not found: "image/x-exr"
kf5.kservice.sycoca: Service type not found: "image/x-kodak-kdc"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.formula"
kf5.kservice.sycoca: Service type not found: "application/x-cb7"
kf5.kservice.sycoca: Service type not found: "image/x-gzeps"
kf5.kservice.sycoca: Service type not found: "application/x-xopt"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.text-flat-xml"
kf5.kservice.sycoca: Service type not found: "image/x-hdr"
kf5.kservice.sycoca: Service type not found: "multipart/x-mixed-replace"
kf5.kservice.sycoca: Service type not found: "application/x-iso9660-appimage"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.spreadsheet"
kf5.kservice.sycoca: Service type not found: "application/x-java-applet"
kf5.kservice.sycoca: Service type not found: "application/x-sony-bbeb"
kf5.kservice.sycoca: Service type not found: "application/x-kwallet"
kf5.kservice.sycoca: Service type not found: "application/x-tzo"
kf5.kservice.sycoca: Service type not found: "application/vnd.oasis.opendocument.database"
kf5.kservice.sycoca: Service type not found: "video/vnd.mpegurl"
kf5.kservice.sycoca: Service type not found: "application/x-dbf"
kf5.kservice.sycoca: Service type not found: "application/x-hwp"
kf5.kservice.sycoca: Service type not found: "application/x-navi-animation"
kf5.kservice.sycoca: Service type not found: "application/x-font-afm"
kf5.kservice.sycoca: Service type not found: "audio/x-opus+ogg"
kf5.kservice.sycoca: Service type not found: "application/ram"
kf5.kservice.sycoca: Service type not found: "multipart/mixed"
kf5.kservice.sycoca: Service type not found: "image/fax-g3"

...

Jan 31 17:24:18 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found
Jan 31 17:24:18 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found
Jan 31 17:24:18 laptop systemsettings5[20318]: Entry  "application/vnd.ms-publisher"  is dirty. Saving.
Jan 31 17:21:57 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found
Jan 31 17:21:57 laptop systemsettings5[20318]: kf5.kservice.services: KMimeTypeTrader: mimeType "application/vnd.ms-publisher" not found
Jan 31 17:21:57 laptop systemsettings5[20318]: "application/vnd.ms-publisher" hasDefinitionFile: false

Some notable messages from the above include:

kf5.kservice.sycoca: Service type not found: "application/vnd.ms-publisher"
kf5.kservice.sycoca: Service type not found: "application/illustrator"

I have already shown that the mime type application/vnd.ms-publisher is present and defined. So I checked a few more at random. Here is application/illustrator (with comments removed to save space).

less /usr/share/mime/application/illustrator.xml

<?xml version="1.0" encoding="utf-8"?>
<mime-type xmlns="http://www.freedesktop.org/standards/shared-mime-info" type="application/illustrator">
<!--Created automatically by update-mime-database. DO NOT EDIT!-->
<generic-icon name="image-x-generic"/>
<glob pattern="*.ai"/>
<alias type="application/vnd.adobe.illustrator"/>
</mime-type>

All the mime-type definitions seems to be present according to a listing of ls /usr/share/mime/application/ (There is not sufficient space to post the entire directory listing here.)

I do not understand why the log messages indicate "Service type not found" for mime-types that are present on my system. But more importantly, why can I not add an application to handle the mime type as shown above?

Response to comments by Nathaniel M. Beaver

$ ktraderclient5 --mimetype application/vnd.ms-publisher
mimetype is : application/vnd.ms-publisher
got 1 offers.
---- Offer 0 ----
Invalid property Actions
StartupNotify : 'TRUE'
StartupWMClass : 'libreoffice-draw'
Invalid property UntranslatedGenericName
Invalid property X-GIO-NoFuse
X-KDE-Protocols : 'file - http - ftp - webdav - webdavs'
Type : 'Application'
Name : 'LibreOffice Draw'
Comment : 'Create and edit drawings, flow charts, and logos by using Draw.'
GenericName : 'Drawing Program'
Icon : 'libreoffice-draw'
Exec : 'libreoffice --draw %U'
Terminal : 'FALSE'
Invalid property TerminalOptions
Invalid property Path
ServiceTypes : 'application/vnd.oasis.opendocument.graphics - application/vnd.oasis.opendocument.graphics-flat-xml - application/vnd.oasis.opendocument.graphics-template - application/vnd.sun.xml.draw - application/vnd.sun.xml.draw.template - application/vnd.visio - application/x-wpg - application/vnd.corel-draw - application/vnd.ms-publisher - image/x-freehand - application/clarisworks - application/x-pagemaker - application/pdf - application/x-stardraw - image/x-emf - image/x-wmf - Application'
AllowAsDefault : 'TRUE'
InitialPreference : '5'
Invalid property Library
DesktopEntryPath : '/usr/share/applications/libreoffice-draw.desktop'
DesktopEntryName : 'libreoffice-draw'
Keywords : 'Vector - Schema - Diagram - Layout - OpenDocument Graphics - Microsoft Publisher - Microsoft Visio - Corel Draw - cdr - odg - svg - pdf - vsd'
FormFactors : ''
Categories : 'Office - FlowChart - Graphics - 2DGraphics - VectorGraphics - X-Red-Hat-Base - X-MandrivaLinux-Office-Drawing'

What is the recommended way to remove this?