FIT file inaccuracies? France != Nouvelle Calédonie?

The map image in my activity looks very different from the one Ride W GPS displays from the same fit file. The countryside I saw looked like France, not like a mountainous south pacific island.

The France world (unlike Paris) isn’t directly based on real-world roads. So it’s not possible for Zwift to provide real-world coordinates for it. Therefore it does similarly to Watopia and maps it to a very remote Pacific island.