[2.0.32] Pathfinding of train went wrong

[louci_im_netz]

I was designing some blueprints and this happened, the item train was stopping at the chain signal to get around the loop, to it's destination.

On the way there are many "service stations" which all can be used to get around. In fact they all have been used before. But apparently the train wants to go to the only service station where another train is currently blocking the block.
It's visualized in the pictures, the green and red way is just the arrows on the track, which you can see when you hover over a train. The blue way is one of many alternative way the train could take to get around to its destination.

Just before I haven't really done anything special. Just fixing a wire here and there. Also I dont have any mods which have anything to do with trains, I only used qol stuff until now (like rate calculator, which need the lib mod).
I have Space Age and Elevated Rails enabled tho.

I hope its alright I sent a zip-file of my save. I didnt really know, what else to send.

Thanks for your help!

[Loewchen]

This is working correctly, a stopped train has a lower penalty than a station not in schedule.