Sorry for digging this out, but I tried to use the angle Expressions to set my player angle.
After some thinking I resorted to use the Platform.VectorX expression (glad to hear hints for improvement, this is my second day with Construct and graphical programming in general).
But while experimenting with the angles I noticed something I don't understand:
when walking to the left and jumping, the angle seems to be >270 at first.
The capx shows what I mean: the green/yellow blocks indicate which angles are present.
P.S. Sorry, don't have Dropbox (yet).