Network trains get stuck when attempting to reach a holding point

Issue description

I'm trying to create a network by adding branches and waypoints to stations.
I started with bidirectional tracks, but the train kept getting stuck before the intersection where the direction of travel changes.
I removed the bidirectional tracks and made a loop—the trains still don't want to park at the dead-end.

Reproduction steps

1. Load attachment save https://drive.google.com/file/d/1SusUcJNLXfuydXAw35axy31rID_EHfJ2/view?usp=sharing
2. See 3x trains on center
3. The one of this train is parking.
4. Other wait before closest cross
5. If parking train remove from union the second train can reach parking zone
6. But only one.

Game version and build number

v0.8.3a (b578)

Operating system

Windows

Attachments

This only gets fixed when I build a one-way railway. This is ugly.

Same situation at another end