It's a Ren'py error without a user-side fix. In future versions of the game (like in the Day 19.5 version) this issue was resolved on Ren'py's side.
hmm a sneaky way to get my geld ! Sigh, ok you win.
Edit: sigh. I bought, now it's fine. Well done!
LOL I also fell into this devious trap and bought the latest version. Curse you Wildman! <Shakes fist at sky>
