Hi, I recently had this kind of nightmare, but I was using Blender.
For me what solve the problem were the following:
- Root bone at 0,0,0
- Root bone pointing to +X
- Child Bones disconnected from Root bone and in case of wheels they had to be pointing to +Y, if you are going to use the WheeledVehicle class that is how it has to be (at least for blender).
It’s no big deal, but it took me a while to figure out those things.
I hope it helps you.