Got an out of bounds crash with this build.
What I did was I tried to open the detailed convoywindow on a convoy that was stuck in front of a token block signal. Another train had previously driven by in the other direction using token block and there where some anomilies when it entered absolute block mode at the passing loop.
I have a few minutes ago pushed a possible fix for this - can you check whether your build is up to date and re-test? Thank you for the report.
"Smurf", as we say in Sweden when two people or things are doing, thinking or saying the same thing at the exact same time! :)
Will check in a minute!
edit: For the moment i cant reproduce this, but will get back if il make it!