Hello there. I experienced some Red Signal issues on Antelope Valley Line and East Coast Main Line Peterborough - Donecaster Line while doing Peterborough to Grantham service with Class 158. On Harlem route Ai Trains always stick to your back. I know there are no classic signalization on the route but it could be nice that they also care about the warnings on the run as you do. It can be really annoying to experience the same issue on the routes which has got physical signal lights. In the "Train at the back" jpg as you see that train shouldn't be there while i was waiting at the platform. And on some routes i realized that some signals remain green after you pass the point. Seems like you don't exist. I hope these signalization issues will solved as soon as possible.
On the Austrian route, when the preceding local train checks the starting position on the MAP, its head is over the signal and it becomes an endless loop. It's uncomfortable. The solution is to set the time a little earlier in walking mode and then go through the trouble of cheating.