Delete Custom Run Workouts

I can delete my custom bike workouts but I cant seem to delete my custom run workouts, in game there is no option on the workout and even after deleting the workout from the Zwift folder it still shows.
Does any one have a work around?

Custom workouts delete fine on my computer, but persist on AppleTV. Not sure about a work-around. I was going to try a re-install, when I had some time.

Chris