You need to determine if the request to stop/start the VM actually reaches ARM and the CRP, Whatever runbook being used, ultimately a request to start/stop the VM will be sent first to ARM and onto the CRP.

The command below can be used to start a VM.

Start-AzVM -ResourceGroupName "ResourceGroup11" -Name "VirtualMachine07"

https://learn.microsoft.com/en-us/powershell/module/az.compute/start-azvm?view=azps-13.0.0#example-1-start-a-virtual-machine