C:/Program Files/Git/voice mode broken on session start — types spaces repeatedly, toggle off/on no longer fixes it

Description

When starting a new Claude Code session, /voice mode doesn't work — it just types " " (spaces) repeatedly even though it shows as toggled on from the previous session.

Previous workaround (no longer works)

Toggling /voice off then back on used to fix this. As of the latest patch, even that workaround no longer resolves it.

Related issue

This may be related to #39074 (STT transcription never fires). Both involve voice mode failing to produce actual transcription output.

Steps to reproduce

1. End a session with /voice mode enabled
2. Start a new session — voice mode appears toggled on
3. Speak into mic — instead of transcription, spaces are typed repeatedly
4. Toggle /voice off, then on again — previously fixed it, now does not

Expected behavior

Voice mode should either work immediately on session start, or cleanly re-initialize when toggled.

Environment

• Windows 11 Home 25H2
• Claude Code latest patch (as of March 25, 2026)
• Hardware: Alienware m18 R2, i9-14900HX