Rear wheel bearing install issue

Ahh glad I’m not the only one what a pain in the arse it was lol. Great close up pics definitely will help those in need out one day. The mechanic that worked on mine didn’t  notice any damage in the slots where the bearing goes but I’m sure something close to that is what caused my issue. Possibly needed to go perfectly seated in order for it it to be tightened down on an old and worn hub.