The "Ja_AA" Japanese UI cannot be used in the Bedrock Edition of Minecraft on Switch.

The "Ja_AA" font, which functioned without issues in previous versions, is no longer usable in the current version of Minecraft for Switch. Consequently, in the Japanese language environment, distribution worlds, mods, plugins, and various in-game UI elements created in other languages ​​fail to display correctly, leading to game-breaking issues and rendering the game unplayable.

For the Japanese community, this is not merely a matter of font preference; it represents a complete denial of the "right to access excellent game content from around the world" and constitutes a critical barrier to the gaming experience.