While creating the Azure Kubernetes Services (AKS) cluster, Azure, by default, creates a certain number of systems with default system names and configurations. The Administration Console pod does not get deployed in the AKS cluster when the system name exceeds 32 characters.
Workaround: Append the --nodepool-name string while running the az aks create command.
For example, az aks create --resource-group <resource-group-name> --name <AKS-cluster-name> --node-count 3 --nodepool-name n --generate-ssh-keys --attach-acr <ACR-name>