Chinese Characters Not Displaying / Input Issue on iPhone (iOS 26.3.1)

I am playing Pikmin Bloom on an iPhone 15 Pro Max (iOS 26.3.1), and I noticed that some Chinese characters cannot be displayed or typed properly in the game.

Certain words or characters do not appear at all, or cannot be input using the Chinese keyboard. This affects naming and general in-game text input.

I would appreciate it if the team could confirm whether this is a known issue and advise on any available fixes or upcoming patches.

Thank you for your attention to this matter.