Multi-Bench supervisor issues

Trying to set up a multiple-bench development enviornment and I have seen this error a couple of times when I finish a bench get-app command:

INFO:bench.utils:sudo supervisorctl restart frappe:
frappe: ERROR (no such group)
frappe: ERROR (no such group)

I assume it’s looking for the user “frappe”? Or a group “frappe”?
I assume this is part of the start/stop control of supervisor per-bench. How should I configure it so that it finds the right name of the bench/user/supervisor/[not sure]?