Black screen

Hi,
I'm uploading zoom videos which are between 5 and 10 minutes long and then
cutting them up and downloading them. It's for work.

I use Google and Microsoft Edge, depending on what I have open. I tend to
close everything when working on these videos.
I work on a Dell Latitude 7410 which has a 64 bit operating system and
this is a newly built laptop.
OS name - Windows 10 Enterprise

Best wishes
Pen

*Pen Meadows-Jones*
Training Content Manager
UKRI
07896 734321