On the community, the user profile icon (also used for notifications) seems to disappear once you scroll down, as seen in the screenshots below.
I believe this is a side effect of changing the Monzo logo - this one is a bit too big and pushes off the notification icon down (where it’s no longer visible so it effectively disappears).
When scrolled up, the icon is there:
Scrolling down makes it disappear:
This started happening to me last week, assumed a new feature of discord mobile web rather than a bug.
Ditto, noticed it last week.
Also assumed it was a “feature” of Discourse, but I preferred it before if there was an option.
It’s a feature 
Previously there was no way to see the title & category of the thread, now there is 
I prefer it this way, I’d much rather see what thread I’m on than a little orange circle 
Plus you can just scroll back up a tiny bit and Search, Menu & Profile will reappear 