Camera does not activate in Lightburn (in Windows it does)

Hello together,

i have on my notebook two cameras:
The selfie cam and my cam for lightburn.

When I only connect the selfie cam, I can activate the in lightburn and I can see me.
When I plug in my lightburn camera, I cant activate this on lightburn, and the selfie cam also not. But I see both in the menu.

It is funny because I can work with both cameras in the windows Camera App, but in lightburn dont.

Can anybody help me?

Thank you.
Nixco

I have the same problem. I am using Debut and can activate both cameras, but in lightburn only the laptop camera will activate,