Zone minutes glitch?

[Fujisan54]

I was just out walking and paddleboarding. As I came in from the paddle, I glanced at Fitbit and saw I had done 30 zone minutes. I packed up and got in the car and the zone minutes showed 83. My heart graph doesn’t show 83 minutes in zones (and doesn’t get into cardio at all but zone minutes section says I was in cardio for 30 minutes). Also on the zone minutes bar graph thing the bars tally up to about 30 minutes not 83. Is this  just a weird glitch? It seemed to happen as soon as I switched the water lock off and I think a similar thing happened once before. 

edited to add: my Fitbit went back to 30 minutes as I typed this and then back to 83 again so I’m guessing it’s a glitch!

[Goldsgirl]

Hi @Fujisan54 , I am experiencing something similar with my Charge 6 and I think it's been going on since the recent firmware update. Yesterday I went on a 20min run and by my calculation and according to my exercise breakdown should have ended up with something like 46 AZMs but I got 79!! Later in the day I went for a modest walk for about 40 mins (not a power walk!) and overall I ended up with 159 AZMs . I get the idea of doubling peak minutes but there's no way that I really did 159 AZMs! Today I have a low readiness score which I think is partly due to the fact that my watch thinks I had a really intense day yesterday. Can anyone she any light on these calculations please? Thank you. 

[Triletics]

@Fujisan54 yes, there seems to be yet another bug in the app and exercise detail lost x2 multiplier. This however doesn't affect yoir daily totals. The bug seems to be purely a display error on that particular screen. Another thing that Fitbit broke in recent update.

[Fujisan54]

Although with mine it seemed to double zone minutes when it shouldn’t, but as you say the daily total was ok.