ATLS Trigger Not Working

[AdvancedApproach]

I have an advanced ATLS Crossing setup. Eight triggers in total, four on each track, all are set to the appropriate channel. I have the triggers set up to a two-way four trigger system. The ATLS Controller and Slave are active and set up properly a too. Yet the crossings don't activate until a train is right on that crossing. How do I fix this? It's happening with only one of the crossings.

 

[AdvancedApproach]

 

[stagecoach]

It depends on the speed of the train and the distance the first trigger is away from the crossing. You can use more than 4 triggers on a track.
First trigger set half a mile away, set for priority 1 only. All fast trains using priority 1 will trigger the crossing. Second trigger 1/4 miles away, set for priority 2 only. All trains using priority 2 will pass the first trigger and only trigger the crossing at the second trigger. The third trigger on the crossing set for all priority trains.
Set up
Trigger 1 = Priority 1 Fast train
Trigger 2 = Priority 2 Normal train
Trigger 3 = Priority 3 Slow train
Trigger 4 = On the crossing set for all 3 priorities
So a total of 8 triggers could be used on one track, depending on train speed.