Ticket not accepting assignee selection

[Gregory Tullo]

When I assign a ticket to one specific user, Jira puts the user name in the Assignee field but highlights it in blue.  If I tab off the field, it reverts to "Unassigned" (or the last user that I was able to assign).

This seems to be impacting only one particular user.

Any thoughts?

[Trudy P Claspill · Accepted solution]

Does the user have permission to be assigned to issue in the project?

Has the user logged into JIRA at least once?

Can the same user be assigned to issues in other projects?

[Gregory Tullo]

Permissions: I used to be able to, not sure why I can't anymore.  Where do I check permissions?

Logged in at least once: yes.

Other projects: will need to try.

[Trudy P Claspill]

Navigate to Project Settings for the project in question. 

In the navigation pane then select Permissions.

Under the Issue Permissions section you'll find Assignable User. Review the User/Groups/Project Roles that are assigned to that permission, and then confirm the user belongs to one of those.

Also, is your user able to view the issues in the project?

[Gregory Tullo]

Turns out that the user was removed from the group.