Version mkgmap-r4888 was committed by gerd on Tue, 01 Feb 2022 improve handling of data inside GMP file - probably all uses of reader.position(xxx) where xxx is a constant must be changed to reader.position(reader.getGMPOffset() + xxx) - add more code to handle unexpected data in TRE7 It seems when subdiv record lengths > 13 there isn't extended offset data for all subdivisions. http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4888