I used to use HRR for zone calculations. Now Garmin Connect Mobile will not let me switch back to Max HR, and shows that I'm using HRR. If I reset the values, they recalculate correctly in GCM, with zone 1 starting at 50%. After a sync, the zones adjust on the watch using Max HR (zone 1 starts at 63% for that HR). They are each on different calculations, and there is no way to switch them back to use the same method in both places. Happened on my Vivoactive 4, and now my Venu 2 Plus.
