AI driving
Hi almir19142,
There are lots of things that could be wrong. First drive your train manually to the next station to see if it derails, if it does this means there is a bad connection. Also, do you have a signal just ahead of where the train is departing from? Is it red or green? Do you have a turnout just ahead of where the train is departing from? Does the turnout defalt to the main line? If not, place a trackmark beyond the turn out and tell your AI driver to drive via this trackmark. In short try a few experiments to see exactly what the trouble is then get back to the forum with more details.
Hope this helps,
Bill69