Problem
An user is deleted, but the image for the unknown user still exists and is visible, for example, when creating a @Mention. This is an issue of Confluence 6.15.6.
Workaround
To remove the profile picture of a deactivated or deleted user follow these steps.
- Create an internal user with the username of the deleted user
- Go to the user administration in the Confluence administration area
- Click Delete Profile Picture for the internal user
- Delete the internal user again