Factorio Forums

I don't know how this happened, and I can't reproduce it. Sadly I fixed it before thinking to save the game.

Could you please exxplain more thouraly of what is wrong in your case.
The only mistake I could see in that picture is that you have two pipe to ground pipes facing the same direction placed near each other. Might be this the cause for pipe to ground connection failiure?

Oh. You might be right. In that orientation and with the building occluding some of it, a pipe to ground looks VERY similar to a west+south connected pipe (which is what the left pipe to ground is supposed to be).

So I suppose this is not a bug then