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Activities - Can't create a measurement with NaN value.18 - percentage 17

For some time now, I have not been able to view the grid/spreadsheet of all activities - I get a frowny faced emoticon with the following message:

"Can't create a measurement with NaN value.18 - percentage 17 - difference"

I can however view individual activities by clicking on them from the 'dashboard', and using the prev/next arrows to work back through activities.

Suggests to me that there's something, somewhere in the data that is causing the view to choke.. Would be good to know what / how to fix it, can't seem to find any way of reporting it as an issue to garmin /customer support directly, I presume this forum is it?
  • Former Member
    0 Former Member
    I have the same thing, been that way for a couple months. I mentioned it to tech support while they were working on something else and they said something like known issue. I guess we need to call in to get support.