the frustrating part is that when I've tested it, I've taken note of which areas I've taped and regardless it gets leaks anyways. I simply can't find where the light is entering. At this point I might just need a new back.
The only one I had a problem with seemed to have a bent cover or messed up latch. When I closed/latched the cover it would pop back out a little. It created light leaks that were really close to what you have been seeing.
The hooks themselves didn't actually seem bent, could be though that the hooks or the catches were boogered up. Due to it not closing all the way it appeared that the lid/cover may have been bent out a bit too.