Camera is set to gray when exiting VCam

I am using VCam 3.0.2203.0404, Windows version.
When I exit VCam via Taskbar >> Right Click >> Exit and open the Windows Camera app, the video is grayscale only. If I restart VCam, it briefly shows a grayscale image as well, then switches to color. If I now start the Windows Camera app, the image is also colorful here.
Exiting VCam, it switches back to grayscale.