Why Do the Pick Up Cubes Dissappear?

Hello, I’m a new developer and I’m trying to create a VR Game starting with a simple sword object. I started out in
the VR Template and the HMD and VR Hands seem to work fine. Problem is, I don’t even have the chance to pick
it up before the Pick Up cubes and the sword scatter across the ground, then disappear along with the sword.
I have checked my KillZ settings and other physics settings, all seeming to be fine. I’ve even looked extensively on the forums, and no luck. Thanks in advance for the help.

Before I start the VR Preview:

And after I start it:

I found the problem, it was a huge 3D model that was pushing away all the objects that were simulating physics.