I’m getting extremely frustrated with my posts showing someone commented but I can’t see anything

Not because they are blocked or I’m blocked but because it legitimately just won’t show up.. sometimes I’m lucky and can figure out who posted the comment but can only see some of the comment if I go to the persons profile and their replies…. I’ve tried logging out and logging back in but it doesn’t work and I don’t know how to fix this issue 😡 it happens often so if I don’t respond or react to your comment chances are I just can’t see it and don’t know about it