It's a Mobius Reverser Coaster with a bit of a twist. The cars reverse 3 times per lap, so the cars start facing forward from the left station and arrive facing backward at the right station. Likewise, the cars start the right station facing backwards and return to the left station facing forwards again.
To get it started and synchronized, make sure that the "synchronize with adjacent stations" option is turned off and test it until car 7 leaves the station. Then turn the "synchronize with adjacent stations" option on and watch it go.