It's wonderful that Architectural 2018 have addressed the issues with performance that 2017 had. But it seems that 2018 also handles roofing differently.   Attached is a .zip file containing a funkis house. The house was started in Architectural 2017 and the plan works fine here. But when opened in 2018, most of the roof is missing. It seems to be an issue where 2 walls across each other cannot be of type "High Shed/Gable wall"   Is this a bug in the new versio