Simulated Ctrl+V paste (Wispr Flow voice dictation) broken on Windows since v2.1.83

Description

External voice dictation tool Wispr Flow stopped injecting text into the Claude Code prompt after auto-updating to v2.1.83.

Environment

• OS: Windows 11 Home 10.0.26200
• Shell: bash (VS Code integrated terminal + standalone Command Prompt — same behavior in both)
• Claude Code: v2.1.83

Observed Behavior

• Wispr Flow text injection → does not work in v2.1.83 ❌
• Manual Ctrl+V paste → works in v2.1.83 ✅
• Wispr Flow text injection → works in v2.1.81 ✅
• Wispr Flow works in all other applications (outside Claude Code) ✅

Steps to Reproduce

1. Install Wispr Flow
2. Open Claude Code v2.1.83
3. Activate Wispr Flow dictation in the Claude Code prompt
4. Release dictation — text is not inserted

Regression Confirmed

Downgrading to v2.1.81 via npm install -g @anthropic-ai/claude-code@2.1.81 immediately resolves the issue. Upgrading back to v2.1.83 breaks it again.

Related Issues

• #37932 — Synthetic key event input broken (VoxType, Linux)
• #37095 — Win+H voice typing broken on same Windows build
• #38577 — Voice push-to-talk regression in v2.1.83