I’m using Maya 2012 and Maya 2009 but both have a problem in time to make the animations. See what happens in the picture:

It is as if gripped parts of the model in time to make the animation.
I’ve tried using the Paint Skin Weight Tool, but I don’t use more because of memory properties error occurs. Are not saving the changes.
Please what can I do to get rid of this type of error once and for all?
