I'm trying to make bulk changes to the users, making them MailBox enabled, but it does not see the correct Mailbox stores.  The stores that it lists used to be there, but they have now changed.

 

For example, there used to be a store that was A-F, but we made 3 other stores, A-B, C, D-F, and split the mailboxes up among the new stores and then deleted the A-F store.  However, AD Mgr Plus still lists the A-F store, not the new stores.