My HR Zones are auto calculated based on the % of LT on Garmin Connect and The android app by default, so I have manually set my FR945 to use the same settings.
I also had to set the Lactate threshold manually on my watch to match Garmin Connect and the App (and get the matching HR Zones).
I go out for a run, everything is great, the HR zones are great, no problem until I end the workout and it sync automatically to my phone, then my FR945 settings for the zones are all reset to MaxHR with values that do not match what I see on my phone and Garmin Connect.
I do not mind that the MaxHR changes, that's ok but those changes should be seen on all platform not just one ...
The main problem for me is the Zone calculation being reset to MaxHR instead of % of LT, I cannot run with those settings so I need to reset it manually before every run .... 
Is that "sync and reset" behavior standard to FR945 or have I missed some settings ?
