I noticed the itch client is complaining that the server isn't compatible with it, so I tried downloading from the site and I think I've figured out why 1.1 works and 1.3 doesn't. It seems you've hosted 1.3 on Google Drive and when I click the link it doesn't start a download, but rather takes me to a Google Drive page with a download button. 1.1 downloads directly and I think this is the reason it works fine. If you can rehost 1.3 in the way you've hosted 1.1 I think it should probably work.