Can't start TacX custom GPX Group Ride

Hi,

I created a custom Tour for an upcoming event in summer out of the GPX file.

It showes the training in the TacX app and I can start it as a single ride.

However I can not start it as a group ride. When I press "Start Group Ride" it will bring me an error after a few seconds saying " No connection established with Live Opponent Service".

I can start other TacX rides as a group ride, but not the custom one.

I have a premium subscription, so this shouldn't be the issue. Any ideas?