Shadows not appearing correctly

[holl0481]

 

The shadow circled in red should have straight edges instead of this 'fluffy' look because it is the shadow from my roof which is straight. I am not sure why Revit is creating this wobbly shadow. 

In fact the shadow I indicate with the blue arrow is also incorrect because it stops casting yet this shadow is created by a tall extended wall so the shadow should continue to be cast and connect with the shadow beneath it.

I have tried everything in visibility graphics and tried sun path too but to no avail.

What could be causing this error? Is there anyway that I can correct this problem?

[barthbradley]

Looks to me like the shadows are being cast by that wall - or what that stepped construct is - that is in the foreground.  

[ennujozlagam]

https://knowledge.autodesk.com/support/revit-products/troubleshooting/caas/sfdcarticles/sfdcarticles...

[holl0481]

I understand, but the shadow circled in red is cast by the roof which is not stepped, the shadow should not be wavy. 

[holl0481]

Thank you, but unfortunately I have already tried everything in sun settings whilst researching my problem, and this doesn't seem to be where the problem lies. It makes no sense to me why the shadow of the roof is cast wobbly.