>>2816179"Boob physics issue" is not particularly informative, and I'm not going to go through these models one by one to see what it means. If they drop to the floor, it is either a processing error due to any of a whole bunch of reasons for it (normally spotted by the inspector), which prevents establishing the link between a physical rigid and another that it should connect to, or the absence of a joint to hold them in place. If they twitch randomly, it means that either the gravity or colliding rigids are trying to push physical rigids beyond the limits of a joint that affects them. If the mesh deforms erratically, unnaturally, it could be a weighing issue or an issue in the rigid/join parameters.
