GPOAdmin 5.21 with version control and backup stored on the SQL server, db creator role granted during upgrade, from 5.20.
After the upgrade, db creator role was removed. Every time we log in, we get, in the event viewer logs, the error "CREATE DATABASE permission denied in database 'master'"
This is confirmed to be a defect in the code that tests access to the QGPM_Backups database, where backups are stored. Currently, to configure and ensure normal operation without errors, the dbcreator server role is required for the GPOADmin service account on the SQL server where the backups are stored. Unfortunately, there is no workaround for this at this time, except for using the DB creator role or switching to a network share backup store, which is the recommended configuration for improved performance.
The defect ID to be corrected in a future version of GPOADmin is 586990; no ETA yet at this time.