Karinita, I, too, have suddenly had my intensity minutes stop registering. Generally, Garmin appears to be having too many issues to be reliable nowadays!
I'm having the same issue here too. None of my exercise is being transferred into the intensity minutes. Heart rate and steps are recording accurately but intensity minutes are still at 0 after 4 runs…
‘Don’t see how it could be continually recording HR, but somehow not tight enough for Intensity minutes... It was working fine for a long time, them one day completely stopped recording IM…
Intesity minutes are suddenly not recorded anymore. While I still 'score' intensity minutes for normal walking, even without HRM (!), i didnt get any for my hard cycle, long run, interval runs or stairs. 2 weeks ago it was still working OK. Many people seem to be reporting this in the last few months. Hope Garmin will come with a solution soom.
I have some of the same issues you all have listed.
Take a look at how tight you wear your watch. If mine is loose, sometimes I dont get a reading. This is especially true when I row. Also, sometimes I have to wipe off the sensor to make it start recording. I usually leave it a little damp (like a chest sensor), or I do a dynamic warm up to get my heart rate up before I start a workout. Again, this is true for rowing, and biking sometimes.
I have had my watch record intensity minutes on a slow walk. I think I read that it will record intensity minutes, even if your heart rate doesnt go up, if you are moving for over 20 minutes.
I may be wrong...
There might be some logic in it. However, I just noticed a sudden drop while i'm not training less (rather more) and not suddenly wearling my watch a diffferent way. And walking alomsot always allows intensity minutes still. Looks like data from Edge 1030 does not get added - why?
I’m seeing the same thing with my Fénix 5. Yesterday I commuted to work by bike like I do most days. Looking at the activity on the garmin app, it looks as it usually does... same mileage similar heart rate stats, etc. but no intensity minutes were added. Seems like the watch is working fine. The problem is with Garmin’s calculation or recording of activity minutes. Not cool.