Apple Watch Move Ring being overcounted

Hi, looking for someone who might know what’s going on.

So to start, my setup is as follows: using AppleTV to run Zwift, connecting straight to Zwift Hub, running companion app on my iPhone and on my Apple Watch to get heart rate.

What I’m seeing is that any calories burnt within Zwift are being effectively counted twice on the move ring.

Does anyone have a solution for this?

Buy a cheap HRM for Zwifting. Support for the Apple watch is (being?) dropped anyway.