Reticulating Splines - ES6.3.2 w/Kibana on ECE

Hmm. Well I just found out something interesting. In my ECE PREPROD environment, this happens on "any" flavor of 6.3 cluster. Any version, 6.3.1 6.3.2. In my "PROD" ECE environment, this does not happen. So that tells me there's something up with a configuration somewhere. Okay so now where do I look. aws elb config, security groups, where...