Some applications display all text in Russian

[Davide Liessi]

Dear all,

I have just installed GPXSee and GPXLab on macOS 10.13.
Both are based on Qt5 and both show all menus and texts in Russian,
while the system language is set to Italian.

Something similar happens with GnuCash as well, but only for some menu entries.
However, GnuCash is not Qt5-based.

Does it happen to anyone else?
Is there a way to force them to display texts in English if not in Italian?

Best wishes.
Davide