Try using this method to get the wall orientation. But you will get opposite orientation if the wall is Curve surface wall and one of the solution you can use is to use the nodes call Vector.Reverse to get correct orientation ONLY for curve surface wall. The following custom nodes can be downloaded from the package as I have left a note for the custom nodes used.
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Hello.
Is the angle for North missing?
welcome them to the community!
respective with true north or project north?