Long time no see.
Today I was playing some pub game and when I was dead I was spamming selfkill button all the time.
After my re spawn I was in some kind of spectator mode (but I was still listed in the def team) with crooked controls. Forward was not working, left was working as forward right etc.
Another self-kill fixed this issue.
That will be all,
Peace out 
EDIT
It looks like it was already posted here: http://forums.warchest.com/showthread.php/41785-Random-distrubances
Didn’t read 