When I use ik handle to lift my skeletons leg, one joint rotates to every direction and ruins legs position.
Also this symbol appears on the top of that joint, I don't know what it is. I just want leg to stay in straight position, how to do it ? "set preferred angles" is set from leg joint to bottom.

I solved it by recreating "ik handle". It must do something with editing rotations after it was created.
Anyway, if I have more questions about this I'll ask here