Upon importing my FBX file, the engine kindly lets me know:
Error multiple roots are found in the bone Hierarchy. We only support single root bone.
(Yes, I left the spelling error in there for accuracy).
Here’s the catch: My character only has one root-bone.
Is Unreal finding bones that aren’t connected to other bones?
Attached a screenshot of my hierarchy: all bones and null objects are part of the root null-object. (I’ve also tried making that root null a joint. Same error).
Why is it complaining about multiple roots when there aren’t?
This model worked absolutely fine in Unity and I’m not really looking forward to having to re-rig and animate it.