Why do I get weird rotations in exported FBX? I have a simple, extruded cube model with two bones assigned to it. Now, when I export the model to FBX, the bones get weird rotations. I've checked that the bones have XYZ rotation of (0, 0, 0) in Blender, but for example the root bone has a rotation of (90, -90, 0) and the child bone has a rotation of (-180, 0, 0). The armature has a rotation of (-90, 0, 0) which I kind of expect to be there (as far as I know it's because of the axis conversion).

So, where are these rotations coming from?
When exporting, different formats have different space formats. Usually it's just a case of the axis getting mixed up.

There's some help here, but generally I'd suggest skipping exports if possible.