Yeah, I’ve retried it a number of times, tried freezing transforms, deleting history, removing all hierarchy, etc.
My most recent experiment was odd, because it shows that SOME of the verts behave properly. If I paint the area around the left arm to move, it behaves normally, the right arm is slightly messed up, but the robe the character is wearing seems to do really strange stuff around the pelvis. This is without any rigid bodies added or anything.