Play store rejection for heart rate function does not work

My watch faces are getting rejected due to the reason “heart rate function does not work”.

I set the heart rate measurement to 1 hour and have added an animation of heart beating (blinking) while heart rate is being measured. Tapping on hear icon or number also starts heart rate measurement.

This functionality works in watch face studio and on my GW4. I have excluded all other devices from the release as well.

Any idea why watch face is getting rejected and/or how to fix it? Thank you.

You can check out this thread about this issue.
Thank you.