PackagingResults: Error: Unknown Cook Failure

Ok, thats good. How would I find this blueprint or object trying to use this array? I do have a skeletal mesh I cannot delete, I was on longer using it and made a newer version, it had a cloth sim on it. The physics asset and animations deleted but the mesh and skeleton are stuck, the editor crashes when I try to move, open or delete it. I’m thinking this is the issue. I’m afraid of deleting the u.asset in the content folder in case it has some really bad affects.

Could the asset I explained be the cause?

Thanks