So I've posted a guide how to find the invalid meshes so now i'm creating a list so we can organize it and remove it in a release later. Everyone can just post here so i can pin it up
List:
tes4\dungeons\fortruins\exterior\castle\rfcastlewalk05.nif
tes4\rocks\water\rockunderwater970.nif
tes4\rocks\water\rockwater970.nif

Is invalid the same as model
Is invalid the same as model not in use by .ESM master so can safely be removed, or is invalid a incorrect model that should be fixed.