When I enable unlock spinning on the track segments before and after the station segment, the train will pull down the restraints but not start to move at all. Why is this?
Um, does your station have friction wheels enabled? It looks like the train won't go anywhere on its own, and spinning shouldn't have any effect on movement.
looking at the ride you need at least another block section to make the car depart the station... That's your problem. It has nothing to do with the spinning locked or unlocked.
Coastercount: 1410(I've seen the world and it's horrid contraptions... @.@) - Wood: 142 - Steel: 1268
#trains = #blocks - 1. So you can run 0 trains. Try adding a block and see if it works. Or disable spinning entirely, so you can rule out the problem is caused by the spinning-settings.