Getting double elo win/loss in best of three matches

[Mut-antVGC]

Hi, I have just experienced an issue where I got double the elo I should have got from a best of three match. Obviously it is not very annoying for me, but I could see my opponent lost twice the elo since the win counted double.
The issue occured in the following match:
https://replay.pokemonshowdown.com/gen9vgc2024regfbo3-2028553169
A screenshot from my perspecitve:

I also checked whether it was only a visual glitch or that it actually affected my elo and it did actually affect my elo:

I was personally not that high on ladder so I can't imagine it being that disturbing for my opponent, but I can imagine that for high ladder gameplay it can be devastating to take a loss twice, it could cost over 100 places on the leaderboard at times. On this ground I feel this bug is worthy to be reported. I am open for contact if anyone has questions.

[Mut-antVGC]

Also I think it is good to mention my showdex win/loss rate didn't count the matches double.