I don't know what the problem is
The problem is, that Itch does not verify users and gets abused right and left. So they have some mechanisms to catch bad agents. Unfortunately this also gives false positives.
What this means is this: everytime a game is published or updated, the system tries to guess, if it is something a human should look over.
You updated two of your games last day and uploaded the third hours ago.
My guess is, that all of them are now in a waiting queue for staff to give ok to put them on index.
Search your username. Your fourth game is still indexed.
Unfortunately, there is not much you can do and waiting time can be up to four weeks (not kidding).
You might want to complain in 3-4 weeks again.
Till then, your games are merely not on the index. No one is gonna search for them by name, if you do not promote them elsewhere and if you do, a direct link is not affect by this.