The deployment is tied to the resource group location. If you create a new resource group in the workflow and then update the location (which comes after the resource group creation), the deployment actually ends up in the default region (where the resource group got created) instead of the selected region in the parameters.
The deployment is tied to the resource group location. If you create a new resource group in the workflow and then update the location (which comes after the resource group creation), the deployment actually ends up in the default region (where the resource group got created) instead of the selected region in the parameters.