On the subject of issues importing FBX files, I’ve had a couple files that I received from my art pool during a school project that had issues generating physics assets. They would say the MinimumBoneSize is too small even with WalkOverSmall or something like that.
In case anyone runs into it, I found a solution, however it might not be the best. I just don’t generate a physics asset at import, then right click the skeleton, create Physics Asset and set bone size to 0.1 or 1. This opens up a tool where I select all joints and scale down tremendously.
This seems to happen in some cases where my imports are extremely tiny because the model scale on export is 1.0 (Centimeters). Attempting just to set scale on export ends up with animations not working so this so far has been the only work around I’ve found.