I can't create projects / download them

Hello, I’m asking it here because I can’t find other ressources concerning this, it’s really weird, but I can’t download projects like for example Elemental Demo or Content Examples, they are present in my Vault, but when I click create project nothing happens, but not with all of them ! For example with Realistic Rendering, and with Kite, it works !

What is happening !

I have the same problem too. When trying to create projects from the Vault, some of them are not downloading if i choose 4.23 engine version. I need to download for 4.22 and then convert. Some projects are working though, with 4.23.