Watch not recording stand hours correctly

I updated my series 6 watch a couple of days ago. My stand goal is 10, on that day it’s recorded 8 stand hours out of 10 yet on the graph below (with the blue bars) a total of 10 stand hours were achieved.

Why is it not recording it against my goal?

Any help would be much appreciated (I wanted to complete the Ring in the New Year challenge this week!)