Hi Guys, Wondering if someone could help me out here. Say I have a standard box fractured (packed) with Voronoi and I sim that with no forces in play, as expected the pieces stay together and are perfectly aligned, no impacts, no moving away - GREAT! When I glue them in the same situation, then delete the constraints either in sops (animated) or with a sop solver connected to the constraint network, impacts are detected and start moving the pieces apart, Grrr. Not sure why this happens, there's nothing that has changed. Test file attached. Any help would be GREAT!