@Davidreiter A momentary solution from Lewdlab. He is working on a fix right now.
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I managed to recreate the bug. The thing I added in to the post as a tip. When you click on an object, move the mouse somewhere else where no other object is highlighted to click through the dialogue, otherwise you are clicking on the object many times, and this causes some kind of glitch. So just be careful where you click when clicking through dialogue in the minigame and you'll be fine. Still, this will be fixed as soon as possible. Sorry about any inconvenience.