Yes Giomen, changing the key from 1 to 0 made the contour lines visible. I am a little ashamed but I did not compare the files more than looking at them in two xml editor windows and the blind eye did not see what you found...
Still some strange things, when zooming out the contour lines disappears in the Marine profile and only the major (every 5th) contour lines are visible.
But still, it is not a problem really. I was only curious in what was happening