Keeps happening 400 or so yds outside Leeds on the NTP 07:48 Manchester - Leeds in the class 45 twice it’s happened now at the exact same place I’m only going 16 mph and disable junction derail is on Is this a bug
The maximum speed of that junction is 10mph, put simply you are trying to cross it too quickly. Derail on junction doesn't actually mean you cannot derail, it means that if you come to junction which is set against you (somehow) you will be able to force the point blade across and not derail. This is not what is happening here.