It seems you might be having trouble with what's called blocking. Do you have more than one train? Try running the track with one less train than you have right now. If that doesn't work, try just one train only.
X2 ??? Intimidator 305 ??? Millennium Force ??? Iron Rattler ??? El Toro ??? Fury 325 ??? Maverick ??? Skyrush ??? Twisted Timbers ??? Voyage
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