I have one big rail loop on my map with some rail siding off shoots.  The Automated Workcart works great everywhere except one spot where it decides to go down the rail siding branch.  I have the config set to default to always right turns and I have about 15 Right triggers at the branch, but the Automated work cart still chooses to go left down the rail siding branch.  

It sounds like maybe something is wrong with the tracks.

The plugin simply sets the workcart to be in right turn mode. If you can get onto it and noclip over the controls, you will see if it is working correctly in that regard.

Have you tried driving a train manually over thay spot?

Thank you for the suggestions.  The train is signaling to the right via the train console arrows but still goes left.  When driving a workcart found in the map or spawned in, those workcarts stay right on the rail loop without signaling the direction.  Looking at the rail paths in the map editor, I can see its just a normal stretch of rail loop and wouldn't suspect an issue with the rail nodes.

Not too sure what is going on.

Since not signaling the direction makes them go right at this specific segment, you could try using a trigger that sets the turn instructions to Default (or maybe Left).

Also curious if the same issue happens when you signal a manually driven train to go right. It sounds like it would go left.

This is probably due to some bug in the game that manifests only on some intersections, or a bug in the map.

Amazing find!!  Changing the trigger to the left fixed the bug.  Your troubleshooting tips were perfect, Thank you!!