I received a couple of notifications that the Profile page wasn't allowing new users to update their usernames or do other things. When I checked, it wouldn't have let existing users do anything either. So that was disappointing.
I have deployed a fix, but in so doing, unfortunately knocked the site offline for about 10 minutes as a few other things had changed under the hood as well. Some of the 3rd party Docker layers had been updated and I didn't notice, until it was too late. Then I had to fix the collateral from that!
So, I apologise for both those issues, but hopefully it's all back and stable again!
Please do let me know if you notice anything else not working though!