[max_thehitman]

Fly_Zo , you will have to remember that this is "... a substitute-franken-something, so it is not perfect..." as said by Sani, at
the SAS clubhouse, so it might be better to ask him, or tell him, about this problem you are getting.

I am sure it might not have anything to do with the Kubelwagen-model, but rather something else.
Go and ask Sani at the SAS forum, he is the right person to show this to. I am sure he will like to help out.