GMS 2.1.0 Build 230

Users are added to GMS by making them a member of an eDirectory group.
I have one user who is no longer with us. He has been removed from
the eDirectory group (and also deleted from eDirectory). He is no
longer listed on the GMS Users page. But if I go to the dashboard, he
shows up under that user list with a Failed status. The details for
this user are GroupWise sync Caution and Device sync Failed. I have
tried using DSAPP to remove him and nothing changes. Any suggestions?