Factorio Forums

I spent a lot of time creating blueprints for my rail world to be modular but i'm having issues where sometimes when i place blueprints, various circuit wires werent placed. I feel like i'm playing a game of find the missing wire every time i place down a new blueprint. If it builds quickly i can place the blueprint a second time after all is built, it then adds the missing circuit wire, but i typically forget about it until i have to keep going back to every section to figure figure out why it isnt working this time. Does anyone know what is causing this behavior? its frustrating me to the point where i'm about to just give up playing for now.

Please post a save file, or a reproduction steps with including blueprint string, maybe tell if you are using mods.