Backup copies may fail because of "out of order backup sequence"
Backup copies may fail and produce an error message in the Backup Copy - Hot Targets report that reads:
"Backup Copy Message: Failed: Unable to process initial meta-info on target, out of order backup sequence detected. This instance is "paused" and may require manual intervention to resume."
To resolve this issue, upgrade your appliance to version 9.2.
In the event of an out of order backup copy, the appliance may be unable to clear the "out of order" condition, causing the next backup group to fail.