I was also given the following link by Intuit customer service on the phone:  https://quickbooks.intuit.com/learn-support/en-us/help-article/journal-entries/create-journal-entry-...

This link suggests options for Add, Edit, Reverse, or Delete the entries.  The journal entries are correct as far as the income that has been recognized and the various payments that have been received over the years.  Therefore the JE's cannot be added, edited, reversed, or deleted.

They just need to be APPLIED.  And APPLIED in bulk, not one-by-one.