Thank you very much for the explanation!

I think I created what looks like a correct path, nothing is broken visually but the trains can not reach the interior stations. I solved it by reconnecting the top and bottom semi-circle. They are actually two tiles too narrow but nothing indicates this visually. Steps to reproduce: 1. Build the bl...

I don't think that applies, I haven't created the save in 0.15 and I'm in 0.16.4 so up to date.

Hi, I have been playing a few hours with friends on a map. When I tried to restart the game and reload the map I get this error: 0.000 2017-12-17 17:10:57; Factorio 0.16.4 (build 34391, win64, steam) 0.000 Operating system: Windows 10 (version 1709) 0.001 Program arguments: "C:\Program Files (x...