How to get animations in individual FBX files to work with a model in a seperate FBX file?

Animation
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1

We are trying to build an asset pipeline for our Unity project.
We want to have the character base model, in its own FBX file, with any additional animations in their own FBX files.

Our 3D artist is using Blender to export the model.

We are currently using a Generic rig.

If we play an animation that is included in the character 3D model, it works.
We create an avatar from the 3D model.

But if we use the ‘copy from other avatar’ to the individual animation FBX file, to use the avatar generated on the original 3D model, the animation doesn’t play, or at most has a couple of weird jerky movements.

Is there any specific way we should be configuring this in Unity or exporting the individual animation FBX files from Blender?

2

You can check the curve paths of these clips to see if their hierarchy structure differs from the bone hierarchy structure of your model character. For the Generic Avatar, CopyFromOtherModel actually only copies the Root Node. Therefore, if your animation fails to play, it indicates that the hierarchy is incorrect.