In my most recent quiz, I had two images. Most could see them. A few couldn't. For some it was the first image; for others, the second. So it doesn't seem to be an issue with a specific image file. Any suggestions?

Also, when I was looking at a "page" with images that I had created (it's for an art history course), some of the images were broken. The page worked just fine last time I taught the course. But when I went in to edit the images (to delete and reinsert them), some of those pictures appeared and it was different pictures that were broken! I tried deleting inserting them all anew, but it didn't make a difference.

Thanks for any and all help!

(Note: There was a post in 2017 about images not showing up in quizzes for some students, but apparently it hasn't been solved...)