As of 2012-Nov-16, Autodesk released PU06 (Product Update 06) for 3ds Max2013 This update is supposed to include fixes for the 3ds Exporter/Importer problems Thus i put my recompiles to rest and recommend to install PU06 instead See the download links below ( valid at 17.Nov 2012) Thanks for your interest Best Regards Josef Wienerroither aka "spacefrog" 3ds Max2013 PU06 download: http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=20652715&linkID=9241178 3ds MaxDesign 2013 PU06 download: http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=20652876&linkID=10381720