This may also be caused by landfill placement, placing a large solar array blueprint or alignment before placing it.

3-4x now after expanding my solar setup the trains have become blocked at my iron smelter.

Signal passed at danger
https://puu.sh/xj9Df/2bff13f607.jpg

Signals
https://puu.sh ...

Thanks guys for solving that one.

I've got two silos right next to each other in a layout map. Left one launches fine producing space science. Right one launches fine but no science given.

Things I've tried, disabled all mods except creative mode, mined the silo and started again, use a new silo, manually launched it, manually ...