In the Russian version of the translation, when starting recommended workouts, there are errors in the inscription “Threshold value”
That's either missing glyphs in the font or the effects of a "shorten text to fit" algorithm not understanding multi-byte characters in UTF-8.
I've never had such bad firmware before. I set the maximum heart rate manually, the watch ignored it. Doesn't count power zones at all.
I did a full reset, but it didn't help