Apple Watch Breathe data not updating HRV and RHR

I usually use the Breathe sessions in the Mindfulness app to generate data used to track my HRV and resting heart rate through a separate app on my iPhone.

It seems that the Breathe data is not updating in my Apple Health app and I'm wondering if anyone has had a similar issue or knows how to force a sync or if I’ve just set it up I correctly? I've rebooted both my phone and the watch with no luck.

If I go into the Health app on my phone and find my watch under the Devices tab I can see that the measurements were recorded, but the HRV and RHR are not updating.

Thanks for your help!

Watch - 11.6.1

IOS - 18.6.2