Ubuntu – Window manager warning: Overwriting existing binding of keysym XXX with keysym XXX (keycode XX)

I performed a fresh install of Ubuntu 18.04 LTS on my desktop that I've been using Ubuntu on since Ubuntu 11.04. As I'm setting everything back up and installing all of the 3rd party software I regular use, I noticed in /var/log/syslog that everytime I press the 'Backspace' key on my keyboard is generates the following errors one after another:

Aug 4 18:44:49 mycomputer org.gnome.Shell.desktop[3044]: Window manager
warning: Overwriting existing binding of keysym ff09 with keysym ff09
(keycode 17).

Aug 4 18:44:49 mycomputer org.gnome.Shell.desktop[3044]: Window manager
warning: Overwriting existing binding of keysym 73 with keysym 73
(keycode 27).

I also notice a short stutter anytime I press the Backspace key (small delay then Backspace starts doing it's thing). Any ideas what the heck this might be and how I can resolve it?

I'm using a Corsair K90 keyboard which hasn't had this issue the past and I didn't configure any custom hotkeys yet so it's not related to anything that I specifically changed regarding key mappings.

One thing I can mention is while I didn't upgrade over my existing Ubuntu installation, my home directory hosted on separate drives was already populated with my personal files and configs from my apps so I'm wondering if something in there that was carried over may be causing this.

Any help is appreciated and please let me know if you need any additional information.