Update from 12.0.2 to 12.1.2 DNS sync, and ConfigSync issues

Hi Need some advice

 

Update of base and HF install successfully , but when booting into new version:

 

Problem 1) HA Group is in standby-standby, and cannot configure anything, get generic errors. Problem 2) DNS - GSLB WIP records are gone.

 

Proposal for problem 1)Was thinking about setting failover method from HA group to HA order then forcing offline and then do update, then revert to HA group once all devices are done.

 

Proposal for problem 2) Was thinking about removing DNS sync before update then reapply after update but concerned version mismatches might prevent records from syncing from lower version to higher version, which would mean I would need to update the primary first then secondary devices.

 

Please help Warm regards Karl