Obviously the devil's in the details, and it's almost impossible to troubleshoot from a screencast, but my experience has been that AWS is generally pretty liberal with the CloudWatch Metrics, but does place the onus upon the user to dig through the 150++ of them to read the docs to find the one that matters. They also claim <https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_...> there's a console table cell for the replication status, but my experience with the console is that often one must opt-in to having that column shown which is suboptimal :-(

That "shared responsibility model," they lean on it heavily