in the online game, on the Rail Queenswell line, you can see trains ignoring wait orders on both ends of the line, for no appearant reason. You can also see it on the Rail Ayslton-Furford line.
Hmm, I don't think that they are ignoring the orders. Firstly, the schedule spacing feature that you are using on that line is not actually a minimum wait feature: see here (http://forum.simutrans.com/index.php?topic=9241.0) for more details. Secondly, the reverse time is deducted from the wait time to ensure that the trains depart on time. The trains are waiting for much longer than they would be if the schedule spacing feature was not set. This appears to be working correctly.
Thanks James, most helpful!