keyboardmacosmojavemouse
I've noticed that for a few days now, on my computer running Mojave 10.14.6, that if I hold any of the modifier keys down, I lose the ability to left or right click, preventing me from using any application that uses the modifier+click combo or selecting multiple items in a list that aren't right next to each other
I use a Corsair K70 Mk.2 keyboard and Corsair M65 mouse with the ckb-next driver, the Magic Trackpad doesn't work for this either.
I randomly noticed that a three-finger-tap on the built-in trackpad would not pull up the dictionary entry for the selected word (like it used to).
I navigated to:
This was very strange, because this feature has always been enabled, and I never disabled it. I enabled this checkbox, and the "look-up" feature now worked.
But, this immediately made my computer stop perceiving all right-clicks (i.e., right-clicks on my mouse were always perceived as left-clicks).
So, I navigated to:
After doing this, my computer has not perceived a left-click as a right-click again.
I still have no clue what caused the issue, or why doing the above solved it, especially considering that, for good measure, I had already previously deleted the com.apple.AppleMultitouchTrackpad.plist and com.apple.driver.AppleBluetoothMultitouch.trackpad.plist preference files.
Best Answer
I simply fixed this by nuking my drive and reinstalling. Doing a simple in-place reinstall didn't help.