Krenim

Maybe then it'a a patch related problem? I'm now trying to conquer the Harkonnen territories, if this will not work I'll try to another game without patch.

Yes, and there's also one in House Harkonnen. I think it's a bug, as it's the only one I miss of the three Houses.

It's the one about finding a dead worm into the desert while flying an ornithopter and, after you are instructed to return to base by the mentat, a couple of tleilaxu ships depart from the site.

I was taking a look at the movie list and I noticed that a movie of the Atreides is missing from that list (AT10, the one between "A plot brews" and "Assault on Giedi Prime". Obviously I watched it from the .rfh file, but I' still wondering if it is unlockable in-game or if I've done something wrong, because I don't remember to have ever seen it.