So this morning I did the 37 hauled 06.05 freight from St Austell to Long Rock. Everything working fine until I pulled into Long Rock. I stopped by the stop notice (If you don't it correctly registers as a SPAD) and asked for permission to pass, I was denied multiple times, Kept asking me to check the switches. I did, I kept moving them and making sure I had the set route to my checkpoint and it still wouldn't let me pass. After 20 minutes I gave up, I decided to see what would happen if AI did it and after waiting at Long Rock it arrived and passed with no issues. So I tried again and it still wouldn't let me pass. This is on PS5.
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
There's another run on that journey with a similar problem, the fix to which is at the bottom of that same post
