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Missing Pace/Power Data

My Forerunner 255 with the latest software release has started dropping or not recording large sections of my treadmill runs pace and power data. The data gets spotty on/about March 25th. Is this a known issue with the latest software or should I be concerned about bad sensors in the device?

0 global_local over 2 years ago

9480309 said:
Is this a known issue

Yes it is. You have to move your arms much more actively that it is recognized. Have same problems after 13.xx update.

0 9480309 over 2 years ago in reply to global_local

I've been testing this. I'm moving my wrist in an arc from my belly button to my hip and the pace data hasn't improved. It seems like this should be enough to record data.