I created the Retool instance in AWS with Cloud Formation and everything was working fine. I shut down the instance to change the resource type from a t2.medium to t3.xlarge and then started back up. I ran sudo docker-compose up -d to start everything up. Running sudo docker-compose ps shows everything is up but I can no longer connect.
Solved. Apparently when using the one click setup it does not give a static IP so the IP address changed.