In such situation:
(http://mallorn.ii.uj.edu.pl/~amelek/railblock.PNG)
train fails to find route to next platform. It however, do finds route to it's primary platform if it's free. [= Choice signal acts like simple signal]
well the guide should show the layout of signals the choice should be at start of entrance and the end signal should be not in station area - the end signal is primarlly for branching off before station platforms
btw what your version?
it's pak64 and latest svn head. This is not end-of-choice sign (which looks different in pak64) but rather one-way-sign (that doesn't behave like signal in terms of blocking). It's clearly problem of sign and not signals at and of platforms because when I remove one-way-sign problem is gone.
It was however used in my game long ago and now it's a bother to fix this :f
works again in rev 3577 (thanks to z9999)