A couple of times now I have told my game to build something and it just puts it in the queue, but doesn't take any of the resources. Useful if I don't have the resources available and am going offline, but when I do have the resource, I want it to use them. Twice now I have queued a building, but it didn't reserve the resources and I spent them on something else. Very annoying.
Am I doing something wrong? Is the game bugged?