Error message: Skin weights have invalid bones assigned.
Skin weights have <n> invalid bones assigned. "Bone <invalid bone name> is invalid in vertices: <vertex nr(s) of the checked mesh>
Description
Validate that skin weights per vertex are applied only to valid bones. The weights should not have any other bones influences than the ones from the valid ARMATURE. Having weights assigned to neutral bones or other bones than the valid ones in the Armature, will create artefact
