Folks, if I download two countries pbf from geofabrik, merge them via osmosis and then build a single img map routing works fine across the countries.

If I create two img files, one per country and put it on my garmin device, enable both maps, I can see  all the ways seems correctly linked but routing across the two countries (maps) fails.

Is that the expected behavior or am I doing somehting wrong?

Thanks,
Enrico