Random game that was never played appearing in stats? (in client)

When I checked my 2020 stats page Before I played any games after the season reset, I was faced with a random Teemo game in top lane that was counted as a loss. What happened? I never played that game.

Note: if you check my match history there will be a Teemo game that counted as a victory as the first game I played in the new season. I tried to play a game to see if I could fix the stats page but it didn't work.

None of the games I have played this season appear in my Client stats because the client does not show normals stats when played in a party for some reason.