Error in Active Zone Min section

[frentz]

Hello.  My Active Zone minutes for Saturday shows 42 minutes.  I went swimming, so I did exercise.  But it also says "2 minutes in heart rate zones," and the graphic under "Active Zone Min" clearly shows heart rate barely into the moderate zone. ^1

This does not add up at all.  How do they get from "two minutes" to "42 minutes?"

Thank you, Alex

^1  Also in a separate section under "Heart," similar graphic.  And thirdly, altho I was swimming 32 minutes in real life, but plausible that it was low / moderate intensity

Moderator edit: formatting

[DramaQueenDiva]

Active Zone Minutes are usually calculated based on the intensity of the exercise.  Your heart rate needs to be above a certain BPM for it to count.  

Can you send a screenshot of what you see on the phone app?