PS: items do not exceed 3 MB
Hey - sorry to hear that! So that we can help you troubleshoot, can you get in touch with us here? https://help.behance.net/anonymous_requests/new
Off the bat - if you're getting stuck on the "loading" screen, please open "Creative Cloud Desktop," quit it, and re-open. Do the same with your Photoshop. If those don't work, please submit a ticket to our official support (above) and someone will get back to you within a few hours.