1Password 8 Use simplified Chinese even when I set to traditional Chinese

The new 1Password 8 app page shows it supports traditional Chinese, but It still uses simplified Chinese.
The old app installed on my phone does use traditional Chinese, I also confirm I have chosen traditional Chinese as my app language.

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1Password Version: 8.9.0
Extension Version: Not Provided
OS Version: iOS 15.5
Browser:_ Not Provided