Exchange Backup fails on Certain DBs after Upgrading to NMM9

Need some advice here.

We have one DAGs that worked fine previously on NMM8.2.4.11. After I upgrade to NMM 9.2.1.3, the backup fails on specific databases with the below error. The DAG consists of 24 DBs. There are 2 DBs which failed to backup. Backup is via the Data Domain with BBB enabled.

When the backup is kicked off, those database will be seeing the session but always in idle state . The rest of the DBs will backup withpit any issue.

Backup Server is still remain an NW8.2.4.12 at the moment.

“ddp_fstat () failed, Err: 5057-nfs getattr failed ( nfs : Stale file handle)

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