[mkgmap-dev] IMG files getting corrupted?

Tue Sep 13 13:11:58 BST 2016

Hi Mark,

common reason for missing tiles are duplicate mapname (map ID). If you 
have multiple maps on your GPS and some tiles get the same mapname, then 
GPS process only one of these tiles and ignore any others.

You set mapname in mkgmap with option --mapname. Or you set it in 
splitter option --mapid. If you miss these options, then mkgmap takes 
default value 63240001, which easily can lead to described problems.

-- 
Best regards,
Andrzej