Images not showing on mobile

I made a post on the art board with thumbnails of my work and then coded it so that if you click the image, you get brought to a new page with the full image. It looks fine on my laptop, but on mobile the thumbnails just don't show, so it looks like I've posted no examples. Any help?

Update: filed a bug report and figured it out, my hosting server needs to be certified or some browsers won't display the images