We all know that physics affects the sense of reality greatly in VR development. As a developer, I always hope to make the physical behaviors of the virtual experience the same as the reality as far as possible. However, I met a problem several days ago. I created a vase with some roses in it, and they are separated Game Objects. However, during the playtest, roses in the vase “jumped out” strangely when I tried to lift the vase. I checked and rebuilt the colliders on the vase and the roses carefully, set the Collision Detection on the Rigidbody to be Continuous Dynamic, tried to bond the roses on the vase as its children, but all of them failed to erase the bug completely. However, my intuition told me that the problem must be related to the physical system, therefore must has something to do with the Rigidbody component.