The appliance-specific backup script, which synchronizes the filesystem freeze between the nodes and is run by VMTools before and after the snapshot is being taken, does not properly mark the snapshot as quiesced.
Resolution
This issue is resolved in VMware Aria Automation 8.13.1.
Workaround:
You may ignore the UI showing that the snapshot is not quiesced.
Additional Information
Impact/Risks:
The user is unable to tell that the snapshot is quiesced, even though it is, given the operation succeeded and quiesce was selected.