In order for the IWP Summary report to include the reference files that provide the border or titleblock components of a drawing, these reference files must be saved in the SPCReferenceFiles folder for your Smart Construction site. This folder is on the Smart Construction server at [drive]:\SmartPlant Foundation Server Files\Web_Sites\[SiteName]\Bin\SPCReferenceFiles.
Reference files must be saved in the SPCReferenceFiles folder so they can be accessed by the Smart Construction server process that creates the IWP Summary report. If a reference file is not found in this folder, and if the server process does not have access to the drawing's linked file location, the drawing is included in the report without the reference file.