I’m working with Windows 7 and from other software, for example AMCap I have no problem to view the camera image.
I’m running the software into a notebook, and I have no problem to open the webcam of the notebook from Lightburn… so it seems to be some problem with this camera.
LightBurn uses UVC drivers to connect to cameras, not the older style Video for Windows system that AMCap uses, and Windows 7 does not include those drivers. Try installing them from here and see if that helps: https://drive.google.com/open?id=1LZFntBE1wyIVT2zgKR7cW4XmZGTJydJt