Hello Robinson stains rufus A,
Welcome to the Microsoft Q&A forum.
Could you please share the error message that you are receiving?
Meanwhile, please see the below possible root causes.
Azure subscriptions have a CPU core quota limit, which restricts the number of CPU cores you can use.
If your account exceeds the CPU core quota, cluster creation will fail.
Please try again and see if this is an intermittent issue due to network issue.