Bentley Rail Track - Station base report to cardinal points of feature

Hi,

10+ years.  First time using this site.  If I'm in the wrong place please point me in the right direction.  I guess BRT falls under InRoads then eh.

So the problem is this: I have design string (my track).  I have a feature (my platform)

I just used the xml clearance report to get the platform X & Y in plane of rail at every platform cardinal point.  Everything worked out great, I cross-checked using the tracking tool, the station, cant and offset all match.  Happy days.

Now I would like to get the design radius at these cardinal points.  I have a transition in the platform, so I planned to use the station base report to find the instantaneous radius at every given cardinal of the platform.

That worked out great too, however, for some reason that I cannot put my finger on, the first cardinal point is reported 100mm early every time I try this. I recreated this problem on every other platform, so it's a consistent thing.

I can work around this easy enough, but it is super annoying not knowing exactly why it is doing this.  It's super annoying.  If anyone can tell me what is causing this to happen I would be very happy.

Cheers

L