Typora 1.8.6 on Windows - Code Fence Default Language Won't Work

[Konjac-XZ]

• Searched existing issues to avoid creating duplicates.

• Confirmed that it can be reproduced in built-in themes without customized css.

• Searched http://support.typora.io/

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Describe the bug
The Last Used feature of Code Fence's default language behaves abnormally.

To Reproduce
Steps to reproduce the behavior:

1. Set Default Language to cpp.
2. Create a code fence and type "cpp".
3. Move out of Code Fence and enter three more backquotes.

Expected behavior
Typora should autofill the letters cpp.

Screenshots / Screencasts

Sample Markdown File
Please attach or send us hi@typora.io the sample md file that may reproduce this.
Blank documents can also reproduce the problem.

Desktop (please complete the following information):

• OS: [e.g. Windows 10 32bit]
  Windows 11 Pro

Typora Version
1.8.6

[abnerlee]

It works fine in my test, could you provide a screencast of this?

[Konjac-XZ]

Videos.zip
Sure. Here are two videos, the first triggers the bug in a document with content, the other in a newly created blank document.
BTW, I forgot to record my settings page, but my settings are:

[Konjac-XZ]

I just uninstalled and reinstalled Typora and the problem persists.

[abnerlee]

Does this work without Sougo IME?

[Konjac-XZ]

Does this work without Sougo IME?

Oh, it works. Sorry for bothering you.