Hi Manfred, maybe there is a tile boundary? What do you get when you create the gmapsupp with mkgmap? Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von DD8KQ <dd8kq@gmx.de> Gesendet: Sonntag, 1. September 2019 15:07 An: Development list for mkgmap Betreff: [mkgmap-dev] Possible Rendering Error on GPSMAP 276Cx Hi all may be someone has an idea how this could happen: According to the screenshot of my device GPSMAP 276Cx you will see next to the cursor a white gap in the polygon fields and also some strange arcs on the nearby streets which will prevent the device from routing through. I checked this area on my PC with Mapsource and could not find any problems there. So it seems, it might be an error in the device or in building the image tiles by MapSource. Any comments ? -- ##################################################### Viele Grüße und 73 de Manfred Haiduk, DD8KQ e-mail mhaiduk@t-online.de dd8kq@gmx.de #####################################################