Hi Marc:
It sounds as if you're doing things correctly.
The next step is to make a backup of your Ledger data (File | Backup), run Data Integrity Check and click on the "Rebuild" button. Usually it can solve the problem but not always. Let us know the results of the "Rebuild". If the process looked successful, run the Data Integrity Check again.
Note: Whenever you run a process like this, there's always a small chance that things will get worse and you will need to restore from the backup. If you are uncomfortable with any of this process, I suggest talking with your Adagio consultant first.