To tokens from bonus packs

By Oberst von Gatow, in Tannhauser

In our last game we wanted to play the scenario "Gold saves the queen" but there was a little problem, because the gold tokens from the Wolf pack looks different (more shiny on the backside) than the normal crate tokens from the original game, so it was not really possible to put them on the map not knowing, which were the gold and which was the other crates. In the end we put on all crates an additional rubble token, so you couldn't see the backside of the crates.

I'm just wondering, if there is a reason, that the tokens from the bonus packs like Wolf, Yula, Ramirez... looks different to the original ones? Or is it a missprinting? ;-)