This model can import to Blender.
Before purchasing this model, you can [Black Rat](https://sketchfab.com/3d-models/black-rat-free-download-3db3acb4140d4de8bd62a171212bad9c) and try to import it.
The alpha map appears to be missing from the resource map.
There is no base color map on the wing uv2 part, and when you put the fbx file into the engine, only 4 slots are coming out without the wing material in the skeleton mesh. If you add the material, you can put the material in the wing area in slot 05, but it seems that you are using a different map from the body. Can you modify that file?
