Automated Drivers and Switch problem

[MichaelSmith]

Hi,

I have noticed a few times on different routes when I give a driver commands to go somewhere, they reach a point where they stop and wait for switches to change. Every so often, the switch(es) will change but then go right back, after a while the driver gets that red exclamation point.
I recently had one layout where the switch faced one way but the train went through on the other track without derailment. Only when I tried to back out did it derail.
Anyone with experience in these situations?

Any help will be apprecited.

I didn't find the right solution from the Internet.

References:
http://www.trainzproroutes.org/forum...hp?f=54&t=4981
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Thank you.