Hi,
Clear all the Master-Local configs from both the controllers. You can verify it by running "show run | include masterip" on local. And "show run | include localip" on master.
Once the configs are cleared, reboot the local controller so that the ipsec map will go away.
Then check if the master and local controllers are able to ping each other. If there is any confusion with VLAN, it's better to ping by specifiying the source VLAN.
If the connectivity is fine, rebuild the master-local. If that doesn't fix, raise a TAC case for troubleshooting further.
Thanks,
Rajaguru Vincent