Rig problem


#1

hi
I have this problem in maya 2016, not shure if it was already solved, but I didn’t know how to search for it.
the thing is that I’m animating a character rigged with Advanced Skeleton. A couple of times It has happened that for no apparent reason, while I’m animating, the rig rotates or translates, deforming the geometry, but the control attribute hasn’t changed. And therefore after keeps the rig rotated or translated in an odd position…
I’m shure I didn’t move the joints, cause they are hidden and I lock them, their sdk and offset groups could be the proble, but I really doubt it. Anyone knows if there is other issue? or I just embrace darkness and try to keep animating with the mistakes?
I didnt upload any image because it jst looks like the rig is in some position…

thnx in advanced