Hello, I have recently experienced a bug in the creepy fairgrounds where I picked up an item on top of the roller coaster control panel that is normally not supposed to be picked up. I don't know how I did it, but it de-spawned the cart from spawning in permanently. Additionally, the item that I picked up does not go into your inventory so I can't just fix it myself.
In essence, I picked up an item that controls the spawning of the rollercoaster cart. I am unable to place it down again. The item, I'm assuming, wasn't meant to be picked up and was.