Rather a hot topic I'm sure, some claim to have no problems and in Tane it was passable for me. BUT, TRS19!? Totally (well almost) useless, it fails 75% of the time to do a simple run around of it's own consist. It either backs out onto the mainline and keeps backing away for miles and miles, or, backs out onto main line and then drives forward passed consist, but fails to use the next junction to couple back to the front of the consist and drives for miles and miles never stopping unless I take over. Third option it has acquired, is to back out onto the main line, then come back in and take the 3rd or 4th (etc) yard which are all dead ends and comes to a stop.
However, that isn't the worst by far.
Try this, and I'd love to know if anyone else has seen this. The AI is given instructions which mostly are drive via trackmark XYZ (etc) and dutifully does so, until it (may) realise it hasn't cleared some from it's list of orders, so it stops and proceeds to drive backwards through 2 or more trackmarks until it gets to the first one it failed to clear. In an extreme example today, admittedly an aircraft but it is still a 'train,' it cleared the first 4 trackmarks off the list, but then went through ten more coming to a halt as ordered, with those 10 plus the halt train order still in the list. Go figure that one!!!
However, that isn't the worst by far.
Try this, and I'd love to know if anyone else has seen this. The AI is given instructions which mostly are drive via trackmark XYZ (etc) and dutifully does so, until it (may) realise it hasn't cleared some from it's list of orders, so it stops and proceeds to drive backwards through 2 or more trackmarks until it gets to the first one it failed to clear. In an extreme example today, admittedly an aircraft but it is still a 'train,' it cleared the first 4 trackmarks off the list, but then went through ten more coming to a halt as ordered, with those 10 plus the halt train order still in the list. Go figure that one!!!