rokket is correct I think.  As it's simulating the hand is coming into contact with the skir part and getting confused (it happens a lot).

I suspect that the bullet physics is moving he skirt just enough to cause the collision with the hand/forearm.

I have a slightly different version of rokkets solution, fo when you have a dynamic garment with arms that is causing the problem.

1 Set up simulation as normal

2 Go to 5 frames from the end and take all rotations off of the offending arm (at the top part of her arm so it sticks out like the tpose)

3 Go to last fram and reapply the pose

Moving her arm out of the way for most of the simulation usually avoids it accidentally catching in the mesh.

Rokkets option is better in this case, because your garment has no arms.  I only mention it in case you have a similar issue another time with a fuller garment :)

John

Fugazi (without the aid of a safety net)

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