Version mkgmap-r3648 was committed by gerd on Mon, 26 Oct 2015 fix possible "internal error, road links are not correct " message This is related to addr:interpolation ways which connect addr:housenumber elements which specify a street name and the closest road doesn't have that name. Under certain circumstances the assigned road is changed, but another reference was not updated. The fix addresses two problems: 1) Only change the assigned road of such a housenumber element when the alternative road has the wanted name. 2) Always change both references. There is probably no golden rule here, as the data is wrong, and one has to decide if it is better to ignore the addr:housenumber element just because the addr:interpolation way is wrong.