I dont get this, I can't get any of my custom objects to collide anymore. They did collide earlier, then not anymore and I haven't changed anything. They are basic lowpoly models in 3DS format. I have tried everything, changing material properties, editing properties inside Xpacks, what else... Everything else (not done by me) collides normally. Sobjects also work fine. What in earth this could be, I couldn't find answer from earlier posts either... Edit: They seem to collide by random, and from random directions. I wonder if it has anything to do with this that I don't have bottom face in my object models. Just side and top faces.