The 4D Coaster has a bug where it shows Items the coaster CANT use but if you click them it crashes your game. here is a complete List of the Things you Shouldn't Click!
4D Coaster Crash Bug **When Track is upside Down
Crashes when pressing: Half Loop
Inline Twist Left and Right** Half Corkscrew Left and Right**
Inline Twist has a bug where inline twist both left and right and recopied at the bottom of the list, those DO NOT crash your game