I do have a fenix2, and 2 of my open-swims have this problem. To the best of my knowledge it is javascript error when trying to display the data collected on a web-browser. This issue needs to be looked at by the garmin development team to be addressed. I know that it does not provide a solution...but I do believe that noone can work around it.
I am getting it too, in both modern and classic views. Well done Garmin, your new and "completely revamped" software has turned my favourite cycling accessory (my Edge 800, in its second year of use) into a useless piece of extra weight on my bike. I can't even view my saved activities from the past. Total Cr*p
Yep, I'm having the same issue. It barely wanted to upload to my iPhone at first. I can't get the Garmin 810 to even connect to my mac but it will charge. Garmin Express won't recognize the 810 nor will the web based modern or old site.
My last workout that I tried to upload displays on the dashboard but when I click it, "unable to parade json to activity"
Sounds like they are down with a glitch. I would hate to lose this workout today.
same problem for me Unable to parse json activity. I hope Garmin fixes this. I like to look at the details for my run and look at my splits for each half mile.
