I don't know if I am alone with this issue but subscription notifications are referring me back to old post that haven't been updated.
I also get "member" has started a new topic when they haven't.
No @nefarius you are not alone this is happening to me as well.
I also get told of posts that have been made before I joined the thread ie a red bell appears but when I check the list the post shows but without its accompanying blue bar and a post time earlier than when I made my first contribution.
I've flagged this but probably won't get a reply until tomorrow.
In terms of the post count, we have found that some post are going to the spam filter which is why some posts are just going back to the OP when clicked. It also showing a message to the OP that their post has been marked as spam.
We have someone in the bin as we speak trying to clear it out.
Just out of interest how fast would it normally show in the past?
Email notifications are instant, while when bell notifications behave normally there can be a few mins time lag. When not working, read notifications are resurrected as new ones from as far back as October.
I have noticed on some threads the OP temporarily disappears affecting post count. Logging out and back in seems to cure it for a time.