I bought the FR965 in Japan and changed the languge to German. But if I run the FR talks to me in japanese languge?
Menu, Audio Prompts, Dialect.
Forerunner 965 Watch Owner's Manual - Playing Audio Prompts During an Activity (garmin.com)
I Had the Same issue. Must be a little Bug.
I used my fr965 for 1 year now, and Last run it spoke english to me (for first time, all other Runs have been in a clear German).
I Just changed the Audio prompts to other language and then Back to German. After that on my Next Run everything was fine.