*** Solved: it was pointed out there is a Lemmy setting that enables showing read posts, rather than a Sync setting.
At some point I think I enabled a setting to hide read posts automatically, but now I can’t seem to find a way to stop this behavior. There is also no method to unhide posts. So now once I’ve read a post, after I refresh it is gone forever in the app.
Tried resetting all settings back to default and erased user data in android but it seems stuck, maybe to my user account?
deleted by creator