Issue Summary

This is reproducible on Data Center: Yes

Steps to Reproduce

1. Identify a user with an alphanumeric UID.
2. Go to Kanban Board and try to add this user to Board.

Expected Results

User is added in the same fashion as a user with a numeric UID.

Actual Results

User is not added, user name appears blank in audit log.

Workaround

You can deactivate the old user and create a new user in their place. This would assign a numeric UID, but also would require manually associating the new user with original Teams, Roles and Work.