Hi,
I’m at days 24.
The requirements is to * Create the resources only in westus region.
But the user in that day has no permission to create resource group.
There is no resource group in westus.
There is no resource group in ‘westus’, I can’t create VM in there.
I tried the lab, and it worked fine at my end.
Ensure you create the SSH keys with default names id_rsa and id_rsa.pub.
Could you try again using the process shown in the screenshots?
ah, yeah. I can create the VM in westus now. I thought it needs to create resource group first.
Thanks for your help. 
Day 24 isn’t working for me. It says something went wrong and token expired.
I would just try the lab again – this happens very occasionally, but usually just starting the lab again will solve the issue.
I’ll try it again. Thank you.