I get an error message when I try to connect my Movie Edit Pro Plus 2021 to my webcam on my HP Envy x360 computer. Zoom works, SKYPE works. everything except Movie Edit Pro Plus works. WIN10
Check that Movie Edit Pro (MEP) is allowed access to the camera in the Windows Settings, Privacy, Camera option - you will need to add it as shown below
You will also have to add MEP to the Windows Settings, Privacy, Microphone option as well.
Are you using the Record dialog option indicated below?
and are the camera and audio options available as shown below?