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I'm trying to run a rendering from Revit 2014 with the Maxwell V.3.0.13 plugin. When I render, only floor slabs and some columns show up in the rendering. All other objects (wall, doors, windows, etc.) are missing from the rendering. I get an error in the Maxwell log window that says "Void ?A0x40635c35.GetRenderAppearanceAsset (Autodesk.Revit.DB.Material.Autodesk.Revit.Utility.Asset ByRef)0". Also, I cannot click on the Materials button in the Revit Add-Ins Ribbon for the Maxwell plugin. Any solutions?

Could you send me a Revit scene file which demonstrates the missing objects? My email is mihnea.balta@gmail.com.