Until very recently I was able to @ mention users in Questions for Confluence, however that is not working anymore. As soon as a type the @ symbol the user picker never shows up.
I have checked other pages inside the same space where Questions are and user mention works as expected.
I have asked the company's JIRA Admins and they tell me no changes were done to permissions on groups.
So what could be the issue and how can it be fixed?
There is a known bug surrounding this problem. You can find more information about it in the ticket below,
Please follow the link above, log in if necessary, and click This affects my team. That helps us keep track of the number of teams encountering this issue. Presently, there's no workaround, but you can follow the Jira ticket for any updates.