Windows: IME (CJK input) does not work in background session viewer chat input
Status Fixed / completed
Reported on v2.1.205
Maintainer reply None cached
Workaround ✓ Mentioned in description ↑
Activity 3 comments · opened Jul 9, 2026 · closed Jul 9, 2026
Summary
When viewing a background (fleet) job via the Claude Code background session viewer on Windows, the chat input field does not accept IME input. Japanese (and presumably other CJK) characters cannot be composed — the IME candidate window either does not appear or input is not committed, forcing users to type in romaji/phonetic transliteration.
Environment
- OS: Windows 11 Enterprise 10.0.26200
- Claude Code: 2.1.205
- Terminal: Windows Terminal
- Language: Japanese (IME: Microsoft IME)
Steps to reproduce
- Start a background (fleet) job from Claude Code
- Open the background session viewer
- Attempt to type Japanese using IME in the chat input field
- Observe: IME does not activate / characters are not converted to Japanese
Expected behavior
IME input works in the background session viewer chat input, consistent with behavior in a normal Claude Code session window.
Workaround
Copy-paste Japanese text from an external editor (e.g. Notepad) into the input field.
Notes
This does not affect the main Claude Code session window — IME works normally there. The issue is specific to the background session viewer input.
3 Comments
Closing — filed in error. Will handle separately.
Closing — root cause was a Windows Task Scheduler task launching claude.exe in a conhost window (not the background session viewer). The task has since been updated to run hidden via pwsh -WindowStyle Hidden, which prevents the conhost window from appearing.
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