Comment 9 for bug 1408546

Good that the crash has gone.
The AI train does not appear because OR could not position it at the initial position. There can be various reasons for this, but the most common is that such position is already occupied or reserved by another train. In this case OR retries every 30 seconds for 15 minutes; if after such time the train still could not be positioned, a log message is written in the logfile.
You could also try to enable the MSTS compatibility option, as it is more "tolerant" and MSTS compatible in positioning the train at the initial position.