There are errors about running tasks on the wrong event loop now that the Backend starts the loop and passes it to the specific backend. Tango seems to start its own event loop with no option to pass one in.

I have tested this against the Eiger driver, which needs to do async initialisation before the backend starts. The tango backend was only previously tested against the demo temp controller, so it is possible this has always been a problem.

Acceptance Criteria

• Tango Backend runs with no errors