As usual the mac version of the game has it's progress reset whenever updated.
Hentai RPG Maker game · By
What do you mean with "progress reset"?
If you downloaded the full new game version, you need to move the save files from the Game.app\Contents\Resources\app.nw\save folder from the old version to the new version.
The "Update files only".zip were made for the windows version. Since I don't have a Mac, I can't test if or how well they work with the Mac version.