Is this your first paid project? If that’s the case it might take some time for the game to be reviewed before it is indexed and shown in the New section. Even if it’s not paid, it might be worth waiting a few days.
I also haven’t received any kind of feedback on if my post wasn’t approved as a major update or launch.
The general idea is that you publish your project, and at some point it will be indexed and shown on the site. Your game’s page is still public, so that shouldn’t interfere with any marketing plans.
I would really like to have game pages that exists during development and have dev updates and all that, but if I am not even certain that my game will be shown in the new sections when I launch, what’s the point?
A game is always refreshed in the New section when a “Major Update” devlog appears. I would imagine this is not instant, so it might be worth waiting a few days.
My advice would be to wait at least 4-5 business days before deciding something has gone wrong.