If some Surfaces are not highlighting on the model, this may be due to model issues or missing properties for glazing elements.
Please ensure that model issues are reviewed before launching the application and that all glazed elements have thermal properties assigned. You might try to place Rooms in spaces which do not have any. If you are unable to place rooms, this will indicate that there are issues in the model – walls/floors etc may not have a ‘room bounding’ condition. You may select a wall element and check in the Properties Palette in Revit if this is set.
Please see this article for model preparation issues and for how to assign analytical properties to glazed elements.