We have an update coming down the line soon that fixes this--it's taking longer than expected because I've needed to rewrite pretty much all of our post loading code, which has been operating on the same core since early beta and at this point is stretched past its limit. We're hoping to enter TestFlight within the next week.
I do have this issue as well. Also mainly using feddit.de instance. On lemmy.world with my secondary account I am unable to reproduce the issue currently.