Ok, I did a video for it:

http://www.youtube.com/watch?v=LIfqpTLa7k4

First two tries: bad animation from passive mode status
Third try: no animation problem directly from active mode!

Same problem for ANY job - any weapon gives this problem (thaumaturge, Marauder, Gladiator etc)
(The game runs at 60 fps for me....................)