Hey, sorry, I explained this badly. I have the Bob's set of mods installed and Big Factories. A few other unrelated things as well. I enabled moving of factories. I found a big electrolyser and big oil refinery in the wild and picked them up. When I place them in my base liquid pipes will only connect to the bottom and right sides. So I can rotate the machine to either input, or output liquids/gasses, since the intake/output are on opposite sides. Any gas/liquid connection that would be on the top or left side of the building will not connect. Retested in latest version, still doesn't work.