MovieClip#gotoAndStop() Error #1009

Hi there,

I have a very strange error when I call gotoAndStop(1) on a very specific MovieClip after calling gotoAndStop(n) (where n>1)

TypeError: Error #1009: Cannot access a property or method of a null object reference.

    at fl.motion::AnimatorUniversal/initTransformPointInternal()

    at fl.motion::AnimatorUniversal/setTimeClassic()

    at fl.motion::AnimatorBase/set time()

    at fl.motion::AnimatorBase/end()

    at fl.motion::AnimatorBase$/processCurrentFrame()

    at fl.motion::AnimatorBase/handleEnterFrame()

    at flash.display::MovieClip/gotoAndStop()

    at MethodInfo-315()

I have isolated the movieclip in a .fla file to be sure the problem comes from this clip. I can send this file if it helps.

PS: I'm using the latest AIR SDK (26)