Unity Import FBX file part model missing material bug

Bug Description:

When unity imports a 3DMax generated FBX file, the lost model file is a combination of a large number of small items, such as a chair. But the chair is only part of the material lost, such as only the back of the material missing.

Reason:

Unity does not support a single object more than a few faces, and when a large number of objects are collapsed into a model, the import into unity will be divided into two files by default (when the FBX model is imported, the console will be prompted), and the material will be sliced, resulting in two groups of models without all the material.

Workaround:

When you collapse a model by a shared material, consider that the model's fixed-point number is best not to exceed 3W

Unity Import FBX file part model missing material bug