This evening while syncing my fenix 6X Sapphire via Wifi, a new language update has been transferred. My fenix is set to German, and while synchronizing with Wifi, suddenly the text language changed.
The missing translations I've seen are "Übertragung" for "Transferring" and "Übertragung abgeschlossen" for "Transfer complete". Also a hint with a text like "If it takes too long, you can push the back/lap button" appeared in English instead of German.
Those translations existed before the update, so it seems they got somehow deleted? I already searched through the german language file and I couldn't find the exact terms "Übertragung" and "Übertragung abgeschlossen." anymore.
Positive about the update: The security and tracking section is now correctly translated.