Hi everyone

I recently had access to a project after a Kickstarter campaign. The ks team gave me a link and a password to access the itch page of the game and I wanted to add the project in my library.  I clicked on the "Add to Collection" button, and I added the game in a collection. However, when I check my library or the collection in which I put the game, it says that "there isn't anything in this collection."

Why I can't see the game that I added in my library?