I have had no problem for the last couple months and all of the sudden, some of the event images are no longer showing (only some of them won't show). I attempted to remove the previous image and reupload another one, and it still will not take.
Weird, so I discovered that it will accept png files, but it will no longer accept jpgs. I was previously able to use jpgs, so not sure why it would've changed. But in any event, I'm ok to use pngs.