Im not sure what version had this error but now I remember this now.
What is problem? Sometimes random stop connected to industry virtually disconnect. Factory works, full of sources, shop storage is empty, cars don't take products from factory. From game side all is O. When I rotate map in specific direction industry and transport back to work properly.
This situation has not any visible circumstances. Rotate map one factory stop. When I back to previous direction - > factory works again.
Now I put save with issue: (pak64)
https://dl.dropboxusercontent.com/u/51291600/other/SimutransCorruptionSaves/e64-59.12.sve
Factory with error at 128,128. when you try to rotate - to other direction - factory overload and not send cars to car shop.