Not working with my webcams

What is your operating system?
Windows 11 64bit

What is your Shotcut version (see Help > About Shotcut)? Is it 32-bit?

Can you repeat the problem? If so, what are the steps?
(Please be specific and use the names as seen in Shotcut, preferably English. Include a screenshot or screen recording if you can. Also, you can attach logs from either View > Application Log or right-click a job and choose View Log.)

OK trying to capture video from webcams.
The laptop is lenovo, the built in webcam in the lid is ‘EasyCamera’ - the preview window is black/blank even though the led light is on nextto camera lens.

Trying to capture from external USB webcam - I select ‘general UVC’ and it locks up Shotcut and I have to manually close the program

I do not reproduce it. You can use something else to record your webcam such as the tool provided with Windows: Camera.