Last night I moved several resource mailboxes which are configured with the auto accept agent to a new mailbox store.
Afterwards, the auto accept agent stopped working. Almost all of the mailboxes are working again now that they've been rehomed in the original mailbox store; but one of the resource mailboxes is not working.
I've attempted to unregister and then re-register one of the mailboxes using the registermailbox.vbs and that appears to work successfully; but it is still not processing mtg invites.
I've been unable to locate any specific kb articles or message posts that might help resolve this so I was hoping someone might have some information/suggestions on what to do next.