Hi David, Thanks for looking into my case.
Got the file from Strava, it shows data for each second, so I guess the issue comes from the Strava upload.
I reuploaded the original file to Intervals.icu, no data is missing, so at least I know how to fix the issue on my own.
I have the same - both the original .fit files from Strava and Wahoo each have per-second data. I changed the Wahoo integration to also download activities from Wahoo, and this seemed to fix the problem.
(It also solved some weirdness with intervals/laps not being detected correctly on another activity, so the direct Wahoo integration seems to work much better compared to downloading activites via Strava, and the planned workout part of the the Wahoo integration is also great).
Thanks!
Same thing happened to me on the Edge 1050 after updating but only happened on the first ride after update. The second ride didn’t give me the warning.