Archived messages blank

I am a new user.  I set up Archiving for 2 accounts.  One is a gmail account and the other is a IMAP account.  The gmail account worked perfectly.  The other account did not.  It created a archive folder, moved the messages, but all of the message content is blank/missing. What went wrong and how can I fix it?  It appears the messages are no longer on the server.

Can you send me one of those messages?

Right-click on the message and choose Forward > Forward as attachment.

[email protected]

I am traveling until Monday.