Impossible to add file(s) to edited non-last chat query

Support Bug Reports
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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

During chat with AI I frequently edit a previous query of mine and very recently a new bug prevents from adding files to edited user prompts. not by drag or file mention

Steps to Reproduce

write 3 prompts, then edit the first prompt and try to drag a file into it or mention a file

Expected Behavior

prompt should appear as edited and be possible to run the prompt

Screenshots / Screen Recordings

Operating System

Windows 10/11

Version Information

Version: 3.21.16 (system setup)
VS Code Extension API: 1.128.0
Commit: 8ae78e8eee1e63479c7e0504b664bc0a80c68000
Date: 2026-09-19T06:43:22.276Z
Layout: IDE
Build Type: Stable
Release Track: Nightly
Electron: 42.10.0
Chromium: 148.0.7778.280
Node.js: 24.18.1
V8: 14.8.178.38-electron.0
xterm.js: 6.1.0-beta.291
OS: Windows_NT x64 10.0.26200

Does this stop you from using Cursor

No - Cursor works, but with this issue

7

Hey @yaireo,

Confirmed on the drag-and-drop side: dropping a file onto a message you’re editing currently lands it in the bottom input and closes the edit. It’s an issue we’re tracking. For now, doing that same edit in the Agents Window (the button at the top of the chat panel) handles the drop correctly.

For the @-mention half I couldn’t reproduce it yet: when you @ a file inside an edited earlier message, does the chip land in the message or in the bottom input? A short clip like your first one would help pin it down.

8

Now I see that mentioning a file & adding it within an edit-mode message works.
Thanks for replying to me!