I have already run the gauntlet of resetting my devices to factory settings, redoing software updates so my devices are up-to-date, and testing things out again. All of my workouts meet the requirements for VO2 max calculation. Right now, neither my Forerunner 245 NOR my Edge 830 are calculating VO2 max anymore. The VO2 max always appears as "31" regardless of workouts. My chest HR device works perfectly fine. I'm at my wits end with this problem. I've talked to customer service and all I got from that experience was frustration.
Has anyone run into a problem where their VO2 max on multiple Garmin devices simply stops working? I can understand one device having issues (e.g. software issues), but two different devices not doing the calculation makes no sense.