First of all, thank you for purchasing the full version of the game.
You are playing on easy difficulty, right? It seems I made a mistake that only appears in the easy mode of the game. I will fix it right away and post an update. I apologize for this mistake. If you want to continue playing now, I recommend starting a new game on normal difficulty, the difficulty doesn't really increase much, and you will be able to play that game without this problem. If not, please wait for me to post the new version, I shouldn't take long.