Why won't certain replies show up in my inbox on tiktok?

I get notifications in the app about poeple replying or commenting on my videos but when I go to check it in my inbox they just aren't there. And it's not like the replies or comments are anything inappropriate or just flagged because I can go track down comments of mine and then check the replies and I can still see them.

Any way to fix this issue? I can't really describe it all that well sorry