Re: Worldwide routable Garmin maps: URL REMOVED

"Garmin has changed their map rendering"

Yes, they do that with about every update for MapSource. Personally I'm still using 6.13.7 and I don't test against every version of MapSource or various GPS devices, just following the "release early and often" rule.

and these map sets may not have been updated in a while on Lambertus' site.

Nope, these maps are more up to date then most other (non-OSM) map providers.

Or, they need to update their compilers.

Possibly, but I don't recall reading about any changes made to fix MapSource handling on the Mkgmap mailinglist. I'm using a very recent Mkgmap compiler, so if the problem is Mkgmap then there is nothing I can do.

I have pulled other maps recently and they work fine so I expect it is the NZ maps that are the issue."

I think this shows the crux of the problem, but I don't know how to find out what's wrong.