Rob Proper

Yes, @threezerous you need to use CAPABILITY_NAMED_IAM because the cloudformation template creates a role and an instance profile with a custom name. See also https://docs.aws.amazon.com/AWSCloudFormation/latest/APIReference/API_CreateStack.html

@threezerous Please note that a ChangeSet does not make any actual changes. It merely gives you preview of the changes it will make when you execute the ChangeSet. It looks...