I do not have show read posts disabled but I do block the NSFL communities as i don't want to see gore on my feed. I seen one other person on here with a Samsung that claims they have the same problem. I'm not sure what the others use.

I think it's related to the sorting algorithm (all, new, etc). Do you have any custom ones or settings for it? I'm not familiar with how those are coded, but I remember them having a major issue about two years ago.

I understand this issue affects a small group of people and I don't want you to waste development time. I do appreciate the work you're putting into this.