I simply can't find all the constructor wagons in my inventory or the shop. I have the locomotive, and steel nails and wood. What is the 4th wagon ?
Bricks 😉 https://trainstation.fandom.com/wiki/Heavy_Constructor
Try searching in the Trains Manager, it might be behind another train 😉
Use the "Search" function.
Thanks very much! Found it in my Oakwood trains