Hi to all!!!I noticed a big problem in the part on page 87 of the beige gears. After having also assembled all the subsequent part of the engine with the cylinders I tried to move the engine shaft and I noticed that a wheel did not always move with the engine or at least it gave this impression. Gear 1 is rotated directly by the engine, through 2 it simply moves the wheels. But gear 2 must not rotate on itself, otherwise the wheels remain still. However, gear 2 is a round pin on a cross hole so depending on the friction it sometimes turns. In my opinion, 2 should be blocked. Opinions?