Tacx Neo bike & HRM - I'm using Fulgaz/Zwift and the bike connects to the bluetooth HRM, stopping the apps connecting to HRM

I've recently changes from a Wahoo Kickr to Tacx Neo bike.

The Wahoo Kickr connects to apps to provide smart control / power /cadence, but the HR is passed through bluetooth to either the iPad or Apple TV directly and shows up in the app (Zwift/Fulgaz) I am using, which works great.

It appears to me (unless I am missing something simple) that on startup the Tacx Neo bike connects to the bluetooth HRM, as my HR appears on the Tacx screen. However, whatever app I try to connect is no longer able to pick up the bluetooth HRM as the Tacx has already grabbed it. Using the Zwift/Fulgaz I get HR data once or twice on a ride, but definitely not continuous. This is a real pain.

I've looked for an option to disable the HR in the Tacx utility, but it looks like that is not an option.

I've tried workarounds like starting the Neo while wearing an Ant+ HRM, I start pedalling and the HR is shown. I then putt on a bluetooth HRM and connect that to an app, which works, but nobody wants to wear 2 HRMs so I take off the Ant+ and almost immediately the Bluetooth HRM and data in the app goes to occasional updates.

To train properly you need HR data in the app of your choice. 

Can someone tell me a simple workaround or can the utility be updated to disable HR data on the bike?

TIA

Mike