Cardio & Recovery rate not logging consistently

Hello.

Have an issue with my Cardio Recovery Rate not being recorded in the Health app via my Apple Watch. I have a S8 45mm watch and and iPhone 14 Pro Max. Software on both is up to date.

For some reason, a couple of the Cardio recording options are sporadic. Cardio Fitness seems to just update when it feels like it. It can go 2-ish weeks without recording anything, and if you look back over the year, there are lots of gaps. It has updated on the 10th of June, but this was the first update since the 31st May. It also updated on the 29th of May, but then before that it last recorded a reading on the 8th of May. However, more inconsistent is the cardio recovery. Last entry is the 31st April. The reading prior was the 22nd April. The reading before that was the 5th of Feb.

For context, I cycle 5 miles 5 days a week for exercise and record these as a Cycle workout, the two days I don’t cycle I record 90-120 minute boxing workouts. I walk frequently too, and if going on a long walk with my children/family, I record these too (albeit slow walks because of the age of my children).

There isn’t really anything pressing or urgent about these readings, but, I do use them to monitor changes if I’m feeling unwell or struggling with the workouts. I’m 41 and have Asthma which affects me daily, so I like to keep tabs on what my cardio levels are like, as I find these do fluctuate when I’m having issues with my asthma. I do also (was also, but readings are becoming too infrequent to be helpful) use these readings when discussing changes to my medication at the Asthma clinic/checkups, so to have this data not being recorded consistently is becoming frustrating.

I do not want to reset my phone to factory as I don’t see this as the issue, but I have, about 6 weeks ago, factory reset my Watch and set up as new to resolve a Messages issue (which did work). The sporadic reading issues with the Watch have been present pre and post reset.

Any help appreciated.

Thankyou,

Dan