Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
In Composer with any agent( including GPT-5.3), the UI shows “Taking longer than expected…” and the run appears to hang. The model stops mid-edit (e.g. code fades out on an incomplete line). It does not recover on its own. The only reliable way I’ve found to unblock it is to send a short follow-up such as “continue” in the input box. This has happened many times, not a one-off.
Steps to Reproduce
1\Open Composer in Agent mode with Composer 2 Fast.
2\Run a task that reads/edits files (e.g. JSP/JS as in the screenshot).
3\Wait until the status shows “Taking longer than expected…” below the streamed output.
Expected Behavior
The agent should either finish the step, show a clear error, or time out and offer a retry—without requiring a manual “continue” prompt.
Screenshots / Screen Recordings
Operating System
Windows 10/11
Version Information
Version: 3.0.9 (user setup)
VSCode Version: 1.105.1
Commit: 93e276db8a03af947eafb2d10241e2de17806c20
Date: 2026-04-03T02:06:46.446Z
Layout: editor
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.19042
Does this stop you from using Cursor
No - Cursor works, but with this issue
