Jon,

I flew 3 hours today, and my Butterfly vario was happy with all of the messages from my Flarm (v6.03). My messages typically look like LFLA185213GPS 10 45.

I'm in PA, so maybe there's something to Matt's GPS jamming theory.

-John, Q3

On Friday, July 3, 2015 at 11:26:00 AM UTC-4, jfitch wrote:
In the Flarm IGC file there appear to be no skipped Lat Long records around these messages. Time correlating to the Air Av IGC log, at each of the instances there are no missing fixes.

My guess is that it is a Air (Butterfly) vario thing. The Flarm NMEA stream must have changed to introduce some new stuff at the 6.0 change, and the vario is choosing to warn about things that might be better unsaid. But I was trying to get more info on the PowerFlarm first.