Yes I had to reboot the FTD which has since fixed the issue.

I am having the same issue on FPR1010 version 7.4.2.1 managed by cdFMC.  Just opened a TAC case....

Is this possible for a standby ASA in the branch location for this scenario to have SNMP polling work from the NMS server?  Same exact setup, but also want to be able to use SNMP to poll the standby ASA of the branch basically using a standby IP addr...