Version mkgmap-r4186 was committed by gerd on Sun, 06 May 2018 mdr20.patch: The mdr20 index did not contain enough entries when same combination of road name + city + region + country appear in different tiles. As a result, some housenumbers are not found for those roads. http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4186