Ongoing problem with uploading photos

Can someone assist, please?  

Despite following all of the instructions (and getting a second opinion!),  I cannot upload photos, despite resizing the images. The thumbnails appear in the  ' image' section and I press 'save' but the images don't appear. 

 

I would be grateful for any help.  Thank you.  

Comments

Hi, having the same problem! Just wondering, increasingly seeing things that only work in the major browsers (chrome, edge, safari) is this possibly a problem here? I use Firefox.

Like Kate, would very much welcome any advice on fixing this! :)