@ferdinand
We are indeed talking about the little bell icon with a number next to it.
The strange thing is (as mentioned earlier as well) is that the unread icon does show up with a number of new unread posts. So, some of the notifications are working. Just not the bell icon.
When I re-enable a notification in the dropdown of the bell icon, I do see the number show up.
I noticed just recently that when I am currently looking at the forum page and someone replies, the number do show up. But without reading the posts, nor doing any actions and I leave the page, then come back to the forum ... the number on the bell icon is gone. Still the dropdown of the bell icon shows the list of notifications with a black circle next to it. Indicating that the replies have not been read yet.
I don't have any content, script, or ad blocker. All was working fine with previous plugincafe.
I have tried with Microsoft Edge (which isn't my default browser), and have exactly the same issues there. The number on the icon bell isn't displayed.
To me this sounds like it isn't browser related.
Do I have some setting in my account which causes this - no idea?
As said, all worked fine with previous plugincafe, and as far as I remember I haven't changed anything in my account settings since the switch.