I created and playtested a protohouse in v 4.12 with custom collisions. Everything is working fine on my side. The guy who is going to use it has updated to 4.13, but he is getting issues. It seems like the collisions has moved out of its original origin and is below the house. What can I or him do about this?
Redo the collisions ? 
I’m guessing it’s currently no point for me to redo them until I understand why they don’t work in 4.13. Everything is working perfectly fine on my side so I thought it might be bug fix related to this since the .fbx-file is intact and carries with it the collisions, just not the transformations, it seems.