[BUG] Mic button disappears after one dictation string, only returns after clearing input box (macOS desktop)

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

After completing one string of dictation in the main chat input, the microphone button disappears and is replaced by the Send button. There is no way to start a new dictation — the mic button only reappears after I erase all text in the input box.

Dictation itself works: transcribed text lands in the input box correctly. The only problem is the missing mic button afterward, which blocks dictating a second string without clearing what I've already typed.

What Should Happen?

Expected: The mic button remains available so I can append additional dictation to existing text without clearing it.

Actual: Mic button is absent whenever the input box contains text; only returns when the box is emptied.

Error Messages/Logs

Steps to Reproduce

1. Open Claude Desktop on macOS, click into the main chat input.
2. Click the mic button, dictate a string of sentences, stop.
3. Text lands in the input box correctly; button now shows Send.
4. Attempt to dictate again — no mic button is present.
5. Erase all text in the input box — mic button reappears.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Claude 1.37937.3 (28dcf5) 2026-08-26T19:52:45.000Z

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_