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FR 255S: 13.21 Bug: VO2Max is not updating

VO2Max and predictions(5km-10km-HM-M times) stopped to change after updating to software ver 12.23 .

Now I received ver 13.21, predictions now changing the values, but the problem with VO2Max still here - it is not changing and showing "there is no data for last 4 weeks".