Heart Rate monitor not working but green sensors are good - Apple watch SE 2nd Generation - IOS 26.2

My watch is working fine and then suddenly when I was working out - heart rate keeps on measuring. Sleep tracking also not working.

I already:

1. Hard reset of apple watch and iphone 2. toggle on and off heart rate

The last time heart rate worked was yesterday night when my sleep was tracked, then afternoon that same day is when I worked out and tracked it, but heart rate monitor keeps on loading...