Unprotected DB from the primary node in SQL AG. Other DBs are being backed up successfully on the same primary server.
Configured to run transactional logging periodically but one large DB shows as unprotected. The problem started when the old primary node was switched over to a new server and evicted. After the eviction, it started not backing up the DB
(error: Transaction logs from some databases were not backed up for the last 8 intervals).
Ran image level backup (the parent job), this was successful but transaction logging still not working. However, the error now shows as
(error: SQL Server transaction log backup took longer than desired log backup interval
Failed to upload SQL Server transaction log backup for DB to LogShip server: Repository agent is stopped
SQL Server transaction log backup could not be completed within 10 RPO intervals and will not be retried)
This was working before and no changes to any of the Veeam servers so this error is not accurate.
Confirmed application-aware processing is enabled.
Other databases on the same SQL server are being protected.
Confirmed both current AG replicas are connected and synchronization healthy.
Confirmed Primary Node is the preferred backup replica for this DB.
Confirmed the parent image-level job completed successfully after the original primary was evicted.
Confirmed both current AG replicas are connected and synchronization healthy.
Confirmed other databases on the primary node have successful transaction-log processing.
What other configuration or setting can I check / change?

