Hi Steve, thanks for reporting. I think this problem is caused by img_io_3.patch (r4167) @Ticker: I see many more places where we use the put3s method to write longitude values. If I got that right we might either change all those places to write -8388608 instead of 8388608, or we may change the assertion to allow 8388608 (with a corresponding comment). I'd prefer the latter. Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Steve Sgalowski <steve.sgalowski@gmail.com> Gesendet: Montag, 14. Mai 2018 23:42:03 An: Development list for mkgmap Betreff: [mkgmap-dev] mkgmap 4189 i just installed mkgmap 4189 , gave it a burl and this is the result java in use is 1.80.171 using mapuloader 4.894 Stephen