Wattage drop AppleTV

Hey

I’ve recently started to get this issue when starting a race, eg, tour of watopia, where the wattage suddenly drops and doesn’t show the correct numbers. Workouts with erg are fine and and warm up on another track is fine but the minute the timer gets to zero and the race is on, the wattage dies. I’m running on an AppleTV 4k, latest updates etc with a Wahoo Kickr core. Tried on iOS on iPad and it seems fine. Done the usual troubleshooting with Bluetooth etc and doesn’t make a difference. Any ideas would be greatly appreciated.

Are you force-closing the app after every use?

I’ve forced closed everything!