Vigorous intensity minutes not working

Same problem here. 

I'm having the same problem with the moderate minutes. I am so fed up I have pretty much stopped using it altogether. 

I have the exact same problem. I've tried contacting Garmin but haven't had a response as of yet. Seriously frustrating. 

I called customer service and they replaced the watch under warranty. The new one works just fine. 

Same problem. Even at zone 5, my Fenix 6 Pro just inexplicably stopped tracking vigorous minutes even though ti tracks heart rate and time in each zones. It just does not provide the 2X vigorous minutes calculation.  I may have to try factory reset

What does the app show as your Resting Heart Rate? You can find it on the pane with the heart rate, but seeing the values for previous days would be interesting too: https://connect.garmin.com/modern/report/60/wellness/last_seven_days

With the default settings of the IM, the HR must reach around a double (perhaps a bit more) of the RHR value to start counting the IM, so if your RHR is unusually high (for example when you do not wear the watch during the sleep), then it could be the reason.

Same here I have a new fenix 6 pro  and am training for half marathon Ran four times last week including a 21km  long run but "4w avg is showing  0 days per week. have tried a hard reset no seaming difference.

Strangely enough I am maintaining at least 75 min/wk but not doing enough.

I am sorry to hear about this. Please consider setting Intensity Minutes based on heart rate zones, if not already, and test again. Can I Earn Intensity Minutes Based on My Heart Rate Zones?

How Are Intensity Minutes Earned?

If you continue to have issues, please contact your local Product Support team.