PVP Coin of Courage Nerf/Bug (10 coin)

I saw that the coin of courage dropped to 10 coin (even for winning) and 5 for losing. I played two games prior and got the 120, then suddendly it dropped to 10 and stayed there despite me 1v3ing the other side. So its not contribution based.

Is this a bug? I didn’t read about this in any patch notes