fyi
In an A/S HA Setup. if the Auxiliary is active and you check the box "Fail back to primary device after it recovers", it will always failback to the auxiliary and not to the primary. basically makes the auxiliary the preferred appliance.
to fix we needed to uncheck the box, while the auxiliary was active, then do a manual failover to the primary and then check the box again.
SFOS 18.5.1
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