My movement keys are: Home, End, Del, PgDown. I switch weapon on keypad. 8 and 5 are my tools/abilities. Sometimes I hit NumLock by accident, and I’m no longer able to use numpad 5 until I press NumLock again. Very annoying.
I’ve tried binding both “keypad 5’s” with numpad on and off, but one of them doesn’t register at all.
There may be more unbindable keys with numlock.