GroupWise user object was renamed: KKolehma --> KRouhiai

After renaming the user is unable to login to mailbox. Win32 client shows error: A problem with your mailbox has been encountered.

ConsoneOne diagnostics show the followin information :
Move Error 0xd109 - Bad parameter
55001 Kolehmainen-KKolehma

I did some searching and most TID's and discussions regarding D109 refer to failed user move (from post office to another). But in this case the used wasn't moved between post offices.

Kind tips what to troublshoot or how to fix.

Kind Regards, Harri