[CRITICAL BUG] Immediate chat reset & forced summarization - Unable to use Cursor for 2+ days

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Every chat conversation is immediately summarized and reset after sending a single message,
regardless of the model used. The chat returns to the initial greeting “Hello. I’m ready
to help you. What would you like to do today?” after each interaction, making any
multi-turn conversation impossible. This happens consistently across all models
(Sonnet 4.5, GPT-based models, etc.) and all chat types (Chat and Composer).

The product has been completely unusable for 2+ days.

Steps to Reproduce

  1. Open Cursor (version 2.4.28)
  2. Start a new chat (any model: Sonnet 4.5, GPT, etc.)
  3. Send any message or prompt
  4. Observe: conversation is immediately summarized
  5. Chat resets to initial greeting: “Hello. I’m ready to help you. What would you like to do today?”
  6. Any subsequent message triggers the same reset

Note: This happens 100% of the time, regardless of project, model, or chat type.

Expected Behavior

The chat should maintain context and allow multi-turn conversations. Summarization
should only occur when conversations become very long, not immediately after the
first or second message.

Screenshots / Screen Recordings

Operating System

MacOS

Version Information

Commit: f3f5cec40024283013878b50c4f9be4002e0b580

CLI:
CLI Version 2026.01.17-d239e66

For AI issues: which model did you use?

Model name: Sonnet 4.5, GPT-4, and all other available models

Note: The issue is model-agnostic - it occurs with ALL models tested.

For AI issues: add Request ID with privacy disabled

Request ID: f9a7046a-279b-47e5-ab48-6e8dc12daba1

Note: This is one example. The issue happens on every single request.

Additional Information

  • Issue reported to support on Feb 7, 2026 (ticket escalated)
  • No resolution or workaround provided after 2+ days
  • Already tried: updating Cursor, restarting app, creating new chats, testing different models
  • Currently on highest-tier paid plan
  • Complete work stoppage - product is 100% unusable
  • macOS Darwin arm64 25.2.0
  • VSCode Version: 1.105.1
  • Electron: 39.2.7
  • Node.js: 22.21.1

Does this stop you from using Cursor

Yes - Cursor is unusable

3

Hey, thanks for the detailed report with the video and the Request ID. That really helps.

Since this happens 100% of the time across all models and chats, it looks more like something account-level or client state-related, not a general bug. A couple things to try:

  1. Clear the app cache/data (make a backup first): Quit Cursor, delete the ~/Library/Application Support/Cursor/User folder, then relaunch. This will reset settings and remove all chats.

  2. Clean reinstall: If the steps above didn’t help, fully remove Cursor (including ~/Library/Application Support/Cursor and ~/.cursor), then download and install again from cursor.com.

I’ve passed this to the team.

Let me know if any of the steps above helps.