When importing the gbxml into Ecotect you can clearly see the differences in the curtain walls between "simple" and "complex." The 5th options which now allows us to export mullions as shading elements gives us some new options when designing exterior shading devices. But if you'll notice one of the overhangs was ignored.
When we view by "zone color" we can see that we have a problem with one floor. Ideally we would solve this issue by diagnosing or Revit model so we would never see it again. However if our diagnosis did not fix the problem, or if we were working in a non-integrated team structure where we didn't have access to the source file, we could always clean this up quickly in Ecotect
For buildings with repetitive floor plates you can always take one clean floor and copy it up. Or if you are doing design energy modeling and are only worried about relative values you can delete all but a typical level, make the floor and ceiling adiabatic, then study different form and facade options in your energy model.