I have tried this in more than one browser and I’m getting the same problem.
The Zap adds a subscriber to Mailerlite when an appointment is booked via Acuity.
It used to add into a ‘new subscriber’ Group on Mailerlite, however, I have changed the name of the Group to ‘new appointment’ on Mailerlite.
I have gone into the Zap and selected the new Group ‘new appointment’ as the destination Group on Mailerlite.
I have run the test (multiple times!) I have selected different Test data.
I have tried turning the Zap off before editing. I have tried editing the Zap while it’s still on.
Whatever happens it does not edit or allow me to publish the change to the Group name in Mailerlite.