I can't finish this timetable since I am held at a red signal even though the switches are properly configured. I still get a message from the controller to check switches.
If this is the one I am thinking of, you have to set some switches on the far side of the way point be the signal clears.
https://forums.dovetailgames.com/threads/6h02-st-austell-penzance-class-37-check-switches.49520/ About half way down this post I show the way to get past the signal