Debug mode fails to recognize new debug logs and keeps running in circles

[GitandGeek]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

After I click the Proceed button in the debug mode, the agent always generates the message that "The new log is still flagged runId: pre-fix and contains the old behavior, so the post-fix code was not reloaded and the log wasn’t reset. To get real post-fix evidence we must start with a clean log and restart the backend. "

This issue persists even after I delete the debug.log file.

Steps to Reproduce

1. Enter a prompt in the debug mode and let the agent do its stuff.
2. Click Proceed after the agent generates solutions for the bug.
3. The old debug log issue then appears.
4. Delete the debug log file and click Proceed again.
5. The agent starts running in circles.

Expected Behavior

The agent should be able to recognize new debug logs and not treat them as old ones.

Screenshots / Screen Recordings

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.2.14 (Universal)
VSCode Version: 1.105.1
Commit: 1685afce45886aa5579025ac7e077fc3d4369c50
Date: 2025-12-11T01:12:35.790Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 25.1.0

For AI issues: which model did you use?

GPT 5.1 Codex Max Extra High

Does this stop you from using Cursor

No - Cursor works, but with this issue

[deanrie]

Hey, thanks for the report. I’ll pass it to the team.