Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
It is not possible to attach a file from Windows Explorer to the agent chat.
Steps to Reproduce
- Open Windows Explorer
- Drag the file from there into the chat as an attachment
Expected Behavior
Before updating to version 3.11.13, I could transfer any file to the agent’s chat.
Screenshots / Screen Recordings
Operating System
Windows 10/11
Version Information
Version: 3.11.13 (system setup)
VS Code Extension API: 1.125.0
Commit: 3f21b08f0b436a07be29fbfe00b304fa15553350
Date: 2026-07-10T01:45:28.254Z
Layout: IDE
Build Type: Stable
Release Track: Default
Electron: 40.10.3
Chromium: 144.0.7559.236
Node.js: 24.15.0
V8: 14.4.258.32-electron.0
xterm.js: 6.1.0-beta.256
OS: Windows_NT x64 10.0.19045
For AI issues: which model did you use?
Any
Does this stop you from using Cursor
Yes - Cursor is unusable