So far as I can tell at this point... my CTRL-M function will operate correctly when first logging into the game. When I ALT/TAB out, however, coming back into the game will disable CTRL-M for some strange reason. The other keybinds I have utilizing the CTRL key, works absolutely fine; CTRL-F for my Flare, CTRL-D for Deterrence, CTRL-; for ground mount, etc.
Everything works except for CTRL-M. This is getting stupid. Any ideas on what is causing this?