I recently got the game Co-Open from Humble Bundle, and I'm trying to add the game manually. It worked with the other games I got, but not this. I did check, though, and it's on IGDB, the database where GOG Galaxy pulls all its info from. I'm at a loss. Any Ideas? (Check Pictures Below To See The Game On IGDB And It Not Showing Up On GOG Galaxy)

This same thing is also happening with the game Fistful Of Nothing. What is going on?
Please Help Me @AndyGOGGalaxy

I found even more games:

Alt254
Retired Men's Nude Volleyball League
Rogue Mansion
Sluggish Morss Pattern Circus
The Groundz
Zodiac XX

Edit: I forgot to mention the game Heeey! Park-Boy. It's also not showing up.

Found the game Syzygy from 2020 is also not showing up. Please help!!!