Notifications do not clear, queues outdated

Hi all!

For the past few days I have been noticing the website malfunctioning, as if it was showing me cached stuff.

When I open it I see for example 6 notifications. Despite working through them, it still shows them as unread. After going to the notifications area and marking all notifications as read they still show up as unread.

Then, the mentoring queues show me in the Inbox stuff I have already replied to, and for which I have also hit “It’s the student’s turn” afterwards.

Refreshing does not seem to do anything (sometimes it does, but almost never). Logging out does not work either.

I am not sure what information may be needed to debug this issue, so feel free to ask!