The language setting in Segmenting in Question & Answer format don't work

[libukai]

Self Checks

• [X] This is only for bug report, if you would like to ask a question, please head to Discussions.
• [X] I have searched for existing issues search for existing issues, including closed ones.
• [X] I confirm that I am using English to submit this report (我已阅读并同意 Language Policy).
• [X] [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:）
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Dify version

0.9.2

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

Even the language is set to Chinese Simplified, the result segment of the index is English.

✔️ Expected Behavior

No response

❌ Actual Behavior

No response