How to Delete Discovery Rule Stuck in Preparing

Howdy,

Dell SCG Virtual Edition v5.16.00.14 running via Docker

I have a discovery rule that I created that is apparently invalid(?) as it's been stuck in "Preparing" status for quite a while.

I've tried restarting the containers and it remains "Preparing".

Any suggestion on how I can delete the rule or force the status to something other than Preparing so that I can edit the rule?

Thanks