Quarq dZero bluetooth

I get this error in the log several times per second throughout the whole zwift session

Unhandled characteristic Quarq AGD321xx for “2A64”

If my partner rides her bike which also contains a quarq, i get hers in my log as well even though i havent paired it.

What is going on?

When it happens, watt and cadence is reported wrong (too low) in zwift over BLE. They are correct on ant+ as seen on garmin device.

High end windows 10 pc
Ryzen 7 5800
Rtx 3070
Connected through companion app with bluetooth.
Wahoo kickr
Quarq dZero
Garmin dual HR strap