Can someone please help? I'm trying to create a Kubernetes cluster using Rancher container UI. It gets stuck at "Updating ...' - Configuring bootstrap node(s) custom-058647693e43: waiting for cluster agent to connect058647693e>". I ran the following command to register the cluster with Rancher: curl --insecure -fL https://ec2-3-221-110-113.compute-1.amazonaws.com/system-agent-install.sh | sudo sh -s - --server https://ec2-3-221-110-113.compute-1.amazonaws.com --label 'cattle.io/os=linux' --token qx8lh8bvhdlsdvgj2qg966tbxnsvwxclnvtjhjlqlzkv72k28cn82v --ca-checksum e2c9669383f548a78d3c5db74b64b2ae794e4bfecfd0277dafe89fc37f7cfab1 --etcd --controlplane --worker