We tried repairing a submarine in 1.8 and the GUI says we don't have the engine or fuel tank. The text is a plain "fuel tank" and "engine parts". We had a full green fuel tank to see if it required full green, that did not solve it. We also tried truck parts which did not work. The GUI did recognize E circuits and the hydrolic pipes but not the other pieces. Is the text wrong and does it take Avionics parts or something now? Either way either the text is wrong or the repair is bugged.