High Availability configsync error

I would try to re-create the self-ip for that you can follow these steps: 1. On GUI: Device Management --> Devices --> Cick on "Self" device --> Device Connectivity --> Network Failover --> Delete the unicast address (1.1.1.1 in your case). 2. Delete Self IP 1.1.1.1 from GUI: Network --> Self IP --> Select 1.1.1.1 --> Delete. 3. Re-create Self IP 1.1.1.1 fro GUI (make sure you are in "Common" partition --> Network --> Self IP --> Create 4. On GUI: Device Management --> Devices --> Cick on "Self" device --> Device Connectivity --> Network Failover --> Create the unicast address. Follow same steps on F502.