Recorded a run today and the VO2 Max increased from 54 to 55 on the current VO2 Max screen but the date still reads Wednesday December 31st 2021. The graph points show all my recorded activities, dates, and VO2 Max number changes for 7 day, 4 weeks, 6 months, and 1 year. Not sure why everything is updating properly but date remains 12/31/21.