Images Not Loading

I am creating a portfolio, and I’m having an issue with two specific images. All my other images load well. These two don’t, although you can see them if you open them directly. I thought maybe it’s due to strange dimensions, but one of the images is almost a square.

Here is the specific page which is supposed to show the images in a tile gallery.

Here is the direct link to one image and here is the other.

These are the only images I’m having issues with so far!

Thank you!