Incorrect skinning on Animated Skinned Mesh To repair these problems, follow the instructions under Updating from 1.3.0f1 or earlier. When installing a new version of the FBX Exporter package after using version 1.3.0f1 or earlier, the link between Assets and Prefabs may be lost. Upgrading the FBX Exporter from the Asset Store package
Upgrading the FBX Exporter from the Asset Store package.
This section covers the following issues: