I'm unable to find info about this. Unity seems to allow to create Animation Clips with every Mesh | Action combination even if in Blender my Actions are only assigned to one Mesh. Here's a screenshot of the source selection button list: For example, eye and mask meshes should only have eye_floating & mask_floating but instead they get breathing aswell. In Blender eye_floating Action is only assigned to the eye Mesh. Is there a way to prevent this? I can see how the list could get annoying being multiplicative as it is.