If I go to /jams, I actually see the title of my submission. But if I go to entries of the jam, it's not there. It's a bit frustrating as I spent a lot of time typing the description. :(
Go to your entry, you should see it in your dashboard. Head to Manage > Edit Game. At the bottom you should see Visibility & access. Make sure it's set to public, and save.
I would just like to ask for a confirmation that I'm all submitted and good :) My game shows up under Entries (named Underneath) but under Overview it still prompts me to "Submit your project".