HC is localized for russian, but not french, that's right.
I've created a fr_FR.lua localization file and tested HC with it: same bug.
More important is that export has worked in the past, with release 1.6.0, and that I can export in formats other than XML...
The issue seems to be that:
- HC does not recognizes the zone, as it's not localized
- unknown zones fire an error