In League of Legends, Duo Queue has been disabled due to matchmaking abuse.

League of Legends Disables Duo Queue Due to Matchmaking Abuse

League of Legends has temporarily disabled the "duo" queue mode for high-ranked players. This is due to abuses in the matchmaking system at the start of the season, where some players were artificially creating imbalance.

Playing as a duo is now prohibited up to the "Grandmaster" rank. The developers plan to later restore this feature for "Challenger — Grandmaster" and "Master — Diamond I" pairs. The rating penalty for duo queues has also been increased to balance their advantage.

Additionally, the game will soon introduce an indicator showing cases where a player's hidden MMR (Matchmaking Rating) is significantly higher than their visible rank.

Planned improvements to the auto-fill role system have been postponed and will be released later.