Nintendo has issued an important alert to Super Smash Bros. Ultimate enthusiasts regarding technical difficulties with Mii Fighters when playing online matches on the newly released Switch 2 console. These issues, while temporary, significantly impact gameplay experience and stability.

The primary concern involves a disruptive bug that can cause online matches to crash entirely when Mii Fighters are involved. This problem appears specifically in cross-platform matches between original Switch and Switch 2 players. Nintendo's Japanese support site has officially acknowledged the issue and recommends players refrain from using Mii Fighters in online battles until a patch is released.

A secondary but related problem affects the visual representation of customized Mii Fighters. Some players have reported that thumbnails fail to properly display their character's customized appearance after creation or editing on Switch 2 hardware. This visual glitch diminishes the personalization aspect that makes Mii Fighters particularly appealing to many players.

For those experiencing the thumbnail display issue, Nintendo suggests a potential workaround: re-entering the character creation menu and saving the Mii Fighter again. While this doesn't address the online crash bug, it may help players maintain their preferred character visuals during local play.

Despite being nearly seven years old, Super Smash Bros. Ultimate maintains impressive popularity, ranking as the third best-selling Switch game with over 35.8 million copies sold. The game's backward compatibility with Switch 2 ensures its continued accessibility, though these technical issues highlight the challenges of maintaining older titles on new hardware platforms.

While Nintendo and Bandai Namco work on solutions for these Mii Fighter-related problems, the gaming community awaits news about the franchise's future. Series creator Masahiro Sakurai has hinted at the possibility of a new Smash Bros. installment, though no official announcements have been made regarding a Switch 2 version or sequel.