Hi, thanks a lot for the reply! Sorry for the confusion about the objectEntity part. Here's a link to the complete sample project: https://github.com/lucasbarcellos/TabletopKit-Sample I've already submitted a bug report (FB16426443), but I'd appreciate it if you could help me understand if this is a bug or if I'm missing something. What I observed is that collisions work as expected if two Equipment instances are the same size and relative rotation but don't seem to work consistently when they have different sizes and rotations. Steps to reproduce Place a square (1x1) Equipment on the board with no rotation. Place a rectangular (2x1) Equipment on the board with 90º rotation. Move rectangular Equipment over the square one and observe the collision. Expected result: collision between Equipment with different sizes and rotation to work correctly. Result: collision doesn't work consistently when Equipment instances have different rotations and sizes. Thanks again!