Enter a zendesk report under support at the top of the page, but I doubt it is a glitch.
Normally glitches appear to more than one user. I have never seen this issue before.
I really suspect it is something on your end, we just haven’t figured out what yet.
Another idea, check your mouse inputs to see if there is any other commands bound to them.
Are you still in modern flight mode?
Another thing to try would be to restore all default settings.