![Image](https://forums.factorio.com/images/ext/1b0fd2e463dbe4fa06b8b3d733026fc8.jpg)
I try replace a pylon but the same thing is happening. I got the same issue with Green and Red wire.
There is my graphic setup :
![Image](https://forums.factorio.com/images/ext/5324fbcff875bbe4c5288f49d34767f2.jpg)
My savegame : https://www.dropbox.com/s/oi7icgl4wbx4fcp/Save.zip?dl=0
My computer :
Windows 8.1 x64
i5-3570K
24Go RAM
AMD HD 7800
I don't know if there is more information I can post. Ask if you need I will try to find them.