Those icons are only to show the contents of objects, they are not meant to be signs. I would suggest using a belt segment with items on it as indicators, or try changing the order of the items in the combinator and having specific blueprints for each rotation (I'm not able to test if this actually ...

Constructions bots get stuck trying to build before they clear any obstacles marked for deconstruction. The attached screenshot shows several bots trying to build rails, but are not able to because the trees have not been removed. I'm not sure if this would be considered a bug, or should be suggeste...

It looks like you have two water pipes going to the refineries. The bottom water pipe of the sulfuric acid plant is connected to the refineries.