The default “Quit Game” shortcut (Alt+Shift+Q) just does absolutely nothing. Nothing is shown in the logs (Ctrl+Alt+Shift+M logs… not combat)… is this happening for others? Restarting client, launcher, computer, and verifying game files have all done nothing to fix this for me.
Edit for Clarity:
I am 100% sure that this is NOT a hardware issue. If it were then I would not have been able to open the monitor (Ctrl+Alt+Shift+M) . Not to mention that all keys involved are commonly used enough that I would know if they stopped working or were flaky.