comment glitch

anyone else getting the glitch with disappearing/reappearing comments? i will get the blurbs at the top of the screen in real time when someone replies to me or leaves a comment on one of my posts and when i check it there is no comment to be found but hours later the comment will suddenly reappear. i got the blurb notif at the top of a comment someone left 5 hours ago on my post, went to check it, it was gone, but it just showed up on my video and in my notif list less than an hour ago.