Image paste requires two attempts on Windows -- first attempt always fails with not found

Description

Pasting an image (Ctrl+V) into Claude Code always fails on the first attempt, then succeeds on the second paste of the same image. This happens 100% of the time, consistently reproducible.

Steps to Reproduce

1. Copy any image to clipboard (screenshot, file, etc.)
2. Paste into Claude Code input with Ctrl+V
3. First attempt fails (image not found / not available)
4. Press Ctrl+V again with the same image still on clipboard
5. Second attempt succeeds

Expected Behavior

First paste should work without requiring a retry.

Environment

• Claude Code version: 2.1.150
• OS: Windows 11 Pro 10.0.26200
• Shell: PowerShell

Notes

Behavior appears to be a regression — started occurring recently. Likely a timing/race condition where Claude Code checks for the temp file before it has finished being written from the clipboard.