Hello Daniel Qin
Welcome to Microsoft Q&A Platform, thanks for posting your query here.
Can you try to list down all the VM's in your Azure Subscription using CLI and see if you are able to see the VM that you are not able to find in the Portal.
To list all Azure VMs in a subscription using CLI, you can use the az vm list
command. Here's an example:
az vm list --query "[].{name:name}" -o table
This command will return a table with the name of all VMs in the subscription. You can also add additional properties to the query to get more information about the VMs.
Ref: https://learn.microsoft.com/en-us/cli/azure/vm?view=azure-cli-latest#az-vm-list
Hope this helps.