HR max indication on Garmin Connect Web

Hi all, I can't see the HR max indication on Garmin Connect Web. 

My 255 and my Garmin Connect on mobile both say HR max = 164, while on Garmin Connect Web I found the same 164 as HR at Anaerobic Threshold, but I know HR max is higher than HR at Anaerobic Threshold.

Anyone can explain?

Thanks!