As shown in the screenshot from Solibri, Pset_ProvisionForVoid is twice in my IFC file. I only used the IFC Shared Parameters-RevitIFCBuiltIn_ALL.txt file for Pset_ProvisionForVoid.Shape & System parameters. The other parameters where custom made Revit parameters in the Family. Any thought on how to export a more pure IFC without double Psets and thus double data?
IFC File:
#12679=IFCPROPERTYSINGLEVALUE('Shape',$,IFCTEXT('Rectangle'),$);
#12680=IFCPROPERTYSINGLEVALUE('Height',$,IFCLENGTHMEASURE(1500.),$);
#12681=IFCPROPERTYSINGLEVALUE('Width',$,IFCLENGTHMEASURE(1000.0000000000001),$);
#12682=IFCPROPERTYSINGLEVALUE('Depth',$,IFCLENGTHMEASURE(400.),$);
#12683=IFCPROPERTYSINGLEVALUE('System',$,IFCTEXT('Architectural'),$);
#12684=IFCPROPERTYSET('2z0l4vtVoeKdbwPqzA9Tl_',#18,'Pset_ProvisionForVoid','',(#12679,#12680,#12681,#12682,#12683));
#12685=IFCPROPERTYSINGLEVALUE('Width',$,IFCPOSITIVELENGTHMEASURE(1000.0000000000001),$);
#12686=IFCPROPERTYSINGLEVALUE('Height',$,IFCPOSITIVELENGTHMEASURE(1500.),$);
#12687=IFCPROPERTYSINGLEVALUE('Depth',$,IFCPOSITIVELENGTHMEASURE(400.),$);
#12688=IFCPROPERTYSET('2F6_hUnZTAl9uPalIkj8E4',#18,'Pset_ProvisionForVoid',$,(#12685,#12686,#12687));
#12689=IFCRELDEFINESBYPROPERTIES('1wltEX2LLnUfa193ODTK1Y',#18,$,$,(#12675),#12677);
#12690=IFCRELDEFINESBYPROPERTIES('0KAYwIZNj5j4yZfaOA5ZD6',#18,$,$,(#12675),#12678);
#12691=IFCRELDEFINESBYPROPERTIES('2SahVIT3zJwhMkQtf_FbeW',#18,$,$,(#12675),#12684);
#12692=IFCRELDEFINESBYPROPERTIES('23OqelyAGkCbmZOV_fpIQX',#18,$,$,(#12675),#12688);