Problem I had with germany map and switzerland border
Playing the official germany map in explorer mod, I spawned right next to the border, near Konstanz, but on the Swiss side of the border in Grenzbachstrasse in Kreuzlingen, which is apparently misplaced in maps/superimposed with the border. Don't know if such a thing can be fixed, it wasn't too hard to find but its technically not in germany.... Screenshot attached. 
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Thanks for providing that! I will send it on to the team and see if we can resolve such locations moving forward.
Cheers