We got your email and all the images for the 3 skins load for me. You said the latest, but what is the exact Spine version you are using? The project is saved with 3.5.51 but maybe you are loading it with 3.6?
I can't load createzone's image either, but I'm guessing it's the Limit scanning
checkbox for the Images tree node. You have 1,366 PNG files and the limit is 2,000 but it's worth a try.