Quote Originally Posted by ddabcd277 View Post
Hi and welcome to Noeman and in the best section ,

Briefly...most probably no. Because this are two different maps createn in a different ways and most probably much of the data overlap from both maps and that is why you see weird routes. If possible to create a route at all. In general the rule is not to use together maps which overlap with each other. Just choose one of them.
Thanks for the help. Looks like the best bet is to plan the route manually and donot let the GMPC autoroute it? Could you tell me which one would GMPC use to do routing if one is a preloaded map and then I put another one as detailed map? So which one would be preferred by GMPC for routing if I select both the maps in mapsets (tools>mapsets)?