Describe the Bug
Cursor hangs for extended periods (potentially hours) during task execution, showing “Planning next moves” or similar status indefinitely until manually interrupted. Issue is not model-specific (affects both Claude and OpenAI models).
Impact: High - significantly impacts developer productivity
Symptoms:
- Tasks hang indefinitely with no progress
- Eventually times out with “Connection failed” error
- Affects multiple users across the organization
Workarounds reported:
- Restart laptop (worked for some)
- Delete/move ~/.cursor directory (nuclear option, worked for others)
Suspected cause:
Possible proxy-level or local network issue causing streaming HTTP responses from LLMs to fail.
Environment:
- Started appearing ~Dec 12, 2025
- May be related to Cursor update (one user noted they hadn’t updated and weren’t affected)
Affected users: Multiple (Ford Prior, Stephen Gross, James Ainslie, others)
Steps to Reproduce
- Open Cursor IDE
- Initiate any AI task (Composer, inline edit, chat, etc.)
- Observe task entering “Planning next moves” or similar processing state
- Task hangs indefinitely with no progress or output
Reproduction notes:
- Intermittent - does not occur on every task
- Not reliably reproducible on demand
- Appears to happen more frequently after Cursor update
- May be triggered by network/proxy conditions (streaming HTTP response failure suspected)
- Model-agnostic (Claude, GPT-4, GPT-5.2 all affected)
Operating System
MacOS
Current Cursor Version (Menu → About Cursor → Copy)
Version: 2.3.34
VSCode Version: 1.105.1
Commit: 643ba67cd252e2888e296dd0cf34a0c5d7625b90
Date: 2026-01-10T21:17:10.428Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Darwin arm64 24.6.0
Does this stop you from using Cursor
Sometimes - I can sometimes use Cursor