Rail Heads may prevent 90% of Rail Capacity from passing through

[zgrssd]

I could not get around to verfying it in a game, but it looks like a Railhead will not allow the "upper 90%" of the Railpoints from passing through it - even if there is another valid endpoint down the line:
https://www.matrixgames.com/forums/tm.asp?m=4834982

In the 2nd example the Aurora Railhead prevents the 2700 of the 3000 points from going on to Richtersport.
In the 1st example, it may be the Richtersport Railhead or the lack of a further Railhead/Station preventing those points from passing through. But I guess it i teh Railhead as well.

Basically the Railhead acts as a terminator, rather then a node on the line.

A temporary fix would be to make sure the Cities with railheads are only connected via a T-crossing, but I am not 100% sure if that would split points like the roads do.