Automation is disabled and un-editable

Iadded the Aqara Cube controller via ZHA, and then pulled down the blueprint for it from here. I got a couple of the automations from it running via the automation ui, and then it suddenly showed as “greyed out” / disabled, and there is a slash through the edit icon on the right.

I tried removing the automation from automations.yml, but the item still shows in the UI. I have removed the blueprint as well, and rebooted several times, and still it shows.

  1. What would cause the automation to become like this to start with?
  2. How do I remove it from the UI?

Thanks in advance,