Apple Watch Series 10 not tracking Wrist Temperature

I previously had an Apple Watch Series 5 and shortly before I got my Series 10 I set up the Sleep focus mode so I could start using Vitals. After 7 nights it started showing me the vitals with Heart Rate, Respiratory rate, and Sleep Duration.

Then I upgraded to the Series 10 and was looking forward to seeing Wrist Temperature. Yet I'm sure I have worn it over a dozen nights since I got this watch and it still says "Available after 5 more nights."

I did some searching on Google and see it mentioned that one reason is that Sleep Focus Mode is not set up but it clearly is set up since the other vitals are working. The only other thing I saw is to open the Watch app on the iPhone, select privacy, and view Wrist Temperature and make sure that is turned on and it is on.

What else could be causing it not to track wrist temperature?