In the game I brought here, I beat a stronger player. But my rating became smaller after that. Why? Explain, please.
When I observe your profile, it seems your rating went from 1533 up to 1551 from this win.
Sorry, I was not exactly accurate. I had in mind the indicators marked in the screenshot. These indicators have decreased.
It does look like a bug to me.
Now that you’ve told us what to look at, I can see the effect you describe, in your Profile, and I don’t know of any way that any component of your rank should go down after winning a game.