I had made a simple wooden coaster that used LIM coaster cars (and a longer-than-normal train) because I wanted to see what would happen if I loaded it in RCT3. However, when I saved it, the game crashed. Then I went to check the track designs manager to see if it saved properly; another crash happened. Then went I went to load it in an actual park, the game didn't crash, but when I went to place the ride, this appeared:
Other images:
Original ride: (the steep part of the first hill has chains on it)
Ride placement preview:
Design selection window preview (I didn't save any scenery with the ride):