This might be fixed now! Please let me know!
Viewing post in Dungeon of the Devourer comments
The bug doesn't seem to be happening anymore!
Unrelated, but I saw on twitter you added immobile art of Jill, but the only place I'm seeing it is in the small little icons in the menus. I believe there may be a bug preventing the immobile art being shown during gameplay when Jill actually gains and loses weight from the Fat status