HELP! Raycasting broken in standalone

I just finished an app that heavily relies on raycasting. In the editor, everything works perfectly. After building Standalone though, the raycasts are not working any more. I’m completely lost as I can’t figure out whats different. I’m raycasting from the cursor position, only one camera in the scene… UI is reacting normally, there are just no raycast hits. Any hint is highly appreciated.

Ok, found the Problem. Maybe it helps someone: If you use a Meshcollider which is not enabled in a Prefab and instatiate it, it will not work if enabled at runtime. In the editor, it will.