I just did my first threshold run since a recent update to my 235 and even though Garmin Connect says do 10min warm up, then 4 lots of [5min in Z4 + 1.5min in Z2], the watch just told me to do the 10min warm up and then 4 lots of the 5mins in Z4! Previously it always told me to do the 1.5mins in Z2 as well...what's going on??
Also, after a reboot, the daily progress is all lost (HR data), but I can live with that...the training is a problem though as I rely on this to prompt me as to what to do! Help?