For some accounts, the full name of the user isn't displayed anymore in Trello : I only see the account name.
The problem doesn't occur for every account. In my team of 20 members, I have 2 accounts concerned by this issue.
To help investigate, these accounts display the old page for the account in Trello : The one where you were able to change Name, Avatar and so on...
I hope this will get fixed soon because my PowerUp use the full name.
Best regards,
E.G.