https://drive.google.com/file/d/1x-V2_UQErC4ZgbVkQVGANSImEXgus8Yt/view?usp=sharing here is a sample file of one of the models that get this error when viewed in Umodel:
assertion failed: B.NumTexCoords > 0 && B.NumTexCoords < 32
FSkeletalMeshVertexBuffer4<< <- FStaticLODModel4<< <- TArray::Serialize: 1/4 <- USkeletalMesh4::Serialize <- LoadObject: SkeletalMesh4'n_ex016_0.n_ex016_0', pos=3EC279, ver=513/0 (unversioned), game=kh3 <- UObject::EndLoad <- LoadWholePackage: mdl/n_ex016_0.uasset <- CUmodelApp::ShowPackageUI <- Main: umodel_build=1538
there are other models in the game that have the same error