Ejected Tapes from Administration Console, still show in original volume group

I ejected a series of tapes using the "eject" feature on the NetBackup Administration Console.  I followed the dialog and removed the tapes as needed from the robot.  Now when I go back in to the Administration Console the tapes still show as being in their original volume pool rather than being ejected.  If I select one of the tapes and attempt to "Change" it and select a different volume pool I am greeted with the message "cannot change volume pool for assigned volume (91)" 

This is on a Netbackup 5230 Appliance with a Master and Media server.  

Have I missed a step in the ejection process?