Laptop via usb-c to hdmi android tv doesn't work

I have a windows laptop with ant+ dongel and a Wahoo kickR. For several years no problem with connecting my laptop to a big screen with an usb-c to VGA cable. Bought a big android tv now. But gives problems when I connect my laptop with a usb-c to HDMI cable to my android tv immediately the wahoo kickr is not longer find by zwift. My heart rate, cadence is still available? What’s the problem? How can I solve this?