Same problem here, frustrating! My power meter had an off the charts reading back in March which set my FTP at 383 Watts and 5.07W/kg. I deleted the recorded ride with the spike but the Garmin app did nog…
Same here! +1
i am not 100% sure, if this helps, but you can delete wrong records in the new power curve menue:
You should be able to change it on your Garmin device directly. Instructions for doing that would be in the manual for your device. For the 910XT it is in Mode > Settings > Bike Settings > [Bike] > Power Zones. For the 510 it is in Training Zones > Power.
But it is not the case :> This topic is about situation when NEW FTP has been detected during the ride and registered to GC...but has some crazy Value e.g because Power Meter was not calibrated correctly- or Power Meter has low battery level... in this case even when you want to ignore this new FTP after ride... it will not happened fully.
There should be some option in GC to exclude by FORCE unwanted treining from FTP statistics, as this wrong data are visible on historical FTP plots.