VO2 Max is not being calculated in my last 2 runs, and status is wrong.
If you got auto detect turned on for max HR the watch can accidently set your max HR too high which makes it hard to reach at least 70% of max HR for at least 10 continuous minutes.
So, check your max HR and post the HR charts for your runs.
Note that VO2 max is only calculated for running outdoors. If you logged it as trail run make sure VO2 max is enabled in that profile.