I have an idea about computer science. PC W10 64 bit (1909), Movie Edit Pro Plus. WebCam full approved for the application. 2x WebCam USB. MEP sees it as ripping the frames (I have a preview), and does not see it as recording (as previously described).
I have 2 cameras (ubisoft and some unknown). However, what this has to do with how the program sees it (both) and changing the tab cannot see it. All other programs have seen them for years - means a MEP error.
Only one camera connected to USB and click mouse (photo). Maybe it's the translator's fault, but I gave the pictures. I test it first on one camera then on the other. On each when I choose frames it is ok, and when I choose to record with the mouse, I have a message and a black screen. Software screen, because I always record on others. I have a few programs where I have been using WEBCam for years and nowhere is the problem only in MEP.