new post page: uploaded image name and title autofilled with ‘Screenshot’

Adding images to a new post, the image Title and Caption are autofilling with the word ‘Screenshot’

This is not something I put there, nor are the images named in anyway. They are indeed screenshots, and were named that originally by the OS, but I’ve renamed them and regardless of that, I have not requested prompted or otherwise encouraged this autofill, because it means I have to manually delete both fields for every image.

The only change I’m aware of is that I recently created a profile for Microsoft Edge instead of using the blank default profile. That said, I see no reason this particular autofill should miraculously spawn because of that, since allegedly autofill information only comes from previously manually filled information.

The page I need help with: [log in to see the link]