I am getting stuck at task 43 of AWS 100 Days where the EKS cluster kept destroying itself and never become Active. I did the same step on my own AWS account in the same region at the same time and had no issue.
mission accomplished… finally!
It actually does become Active but for a very very short moment of few seconds as attempted to use cli command and hit the Check button as soon as it became Active and still not fast enough. Hope I will get some luck with this soon in the next few attempts 
watch -n 1 aws eks describe-cluster --name devops-eks --query cluster.status