What happened to the Endurance Score calculation?

Fenix 8, firmware 13.22 (and 13.21 before).

Nobody has this experience with Endurance Score calculation?

??  Works for me on 12.35.  Perhaps it's an issue as you are running beta software?  I think this post would be better placed in the beta forums.

Yes, and even the beta 13.18 was good.

Sorry, I hate to be 'that guy' but this is the risk you take with beta software.  Often garmin will fix lingering issues but then break other issues in the same beta build.  If you really miss the feature, downgrade to 12.35 public release.

Yes I know, that is beta. But will be productionn in the near future. 

And even worse, the Endurance Score is subtracted instead of added after the activity. Version beta 13.22.

I'd say that it weird lately, it doesn't goes down, but can't say it grows up either, only after races I've got graph spiking up... I wonder if you have seen a ticket or discussion in Beta for this? I'd be interested to follow it

Oh no, with last beta version 15.17 is this problem back again!

I can't understand how it works, after running the hills the score goes down just as endurance and then goes up the next day even when I have no training. Maybe it's waiting for recovery time to adjust the score...

Yes, I too see the endurance score drop by about 150 points after sleep couple days ago. I also see my race predictor go up by 1min for 5K. Maybe they are related

For me It keeps going down no matter how I train