Automatic Agent Update Registration Failing with Internal error: 'list' object has no attribute 'update'

[scotsie (Scott Crace)]

1. Yes, the fqdn specified in the register command is the checkmk server.
2. Yes, the agent was signed, baked and pulled from the same checkmk server as item #1.
3. No proxy but these are in different datacenters so firewalls are a factor however, the peer servers that registered fine are in the same subnet.