Moving resource groups doesn't complete properly

I have a workflow using the CLI which does the following:

- Create a Resource Group (R1)
- Create SQL Server (S1) in R1
- Copy DB from a different server (S0)
- Move resource group (R1) (contents) to another subscription (into resource group R2)
- Copy DB from server (S1) to pre-existing server (S2)
- Delete R1
- Delete R2

When I do this, the delete step for R1 reports that the contents are still moving for ~4 hours. When I do this via the portal instead of the CLI, this ~4-hour delay does not exist. I follow the same pattern, create everything identically, but using the portal, I can delete R1 with no delay. Admittedly, doing this by hand adds 3/5 minutes of manual processing time.