In timetable mode, the AI-operated AMTK #66 is always stuck at signal 2164 (just before Route 128). I tried operating MBTA #842 and 808, but they both get stuck behind #66; by the time 842 gets there, 66 has already been sitting at the signal for 25 minutes. There is nothing ahead of #66, but if I take over the service the dispatcher still won't let me go through at restricted speed. This renders MBTA 842 and 808, and possibly other timetable services, completely unplayable.
Did a test run myself and I can confirm, it is indeed the case. The Amtrak train gets stuck on a red light before Route 128, then the other MBTA train and I caught up to it and got stuck as well, and so did every MBTA train following behind us. Didn't take long and it was 5 or 6 of us stuck here. The problem seems to be somewhere around Forest Hills, as there are a few trains stuck there on the tracks going west, and also many of them on the mainline coming from the north. So I suppose whatever the problem is at Forest Hills, it creates a traffic jam from both directions.
