No, it's working properly.
You see, the gallery is meant for scenes that you can't repeat or would have a hard time doing so.
Because if the players kept saving before every scene, there's always a chance that the saves could break in the future.
(For safety reasons, always save in a secure location like the MC's bedroom)
There are some exceptions here and there, but like I said. Not all scenes are meant to be in the gallery.
So yeah, those scenes aren't there because they can easily be accessed ingame.
Viewing post in Corrupted Kingdoms (NSFW 18+) comments
Ok, so I will have to save before every scene as normal, in order to have quick access. To me and a few others I'm sure, a gallery is meant to be a "Time for fap" haven. Limiting the gallery is... hurtful. I mean at least you have a gallery, some game designers don't have a gallery or just remove it(which leads to players losing interest). No matter what you decide, please leave the gallery in. Otherwise I (and most likely others) will never play the final release, instead opting for the last version that had a gallery. Thank you anyway, I like your game it is very fun regardless of gallery decisions.