Thank you Benydc. That was a stupid mistake by myself.
I create my levels with tiled backgrounds (for filling/blocking out
the base) and single sprites for details like walkway ends,
broken edges and all that stuff. Since I´m doing just a testlevel
for movement development I did it with just the tiled backgrounds
and not one single sprite. Bugger...
Sometimes you just loose concentration when working with
all those events and actions.
Thanks again and keep up the good work!