Where does the bug appear (feature/product)?
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Cloud Agent (GitHub, Slack, Web, Linear)
Describe the Bug
Cursor repeatedly loses authentication and returns ERROR_NOT_LOGGED_IN, even after successfully logging in again.
The issue affects both the Cursor desktop application and the Cursor website in a regular browser.
After restarting Cursor and logging in, AI Agent sometimes works briefly but then suddenly fails again.
Steps to Reproduce
Open Cursor on Windows.
Log in to the Cursor account.
Open an existing RPG Maker MZ development project.
Start an AI Agent conversation or request code-related work.
Cursor initially responds but eventually fails with an authentication error.
Log out and log back in.
The same error occurs again.
The Cursor website also unexpectedly logs out.
Expected Behavior
Cursor repeatedly returns:
ERROR_NOT_LOGGED_IN
ActionRequiredError: Authentication error
ConnectError: [unauthenticated] Error
actionRequired: login
Cloud Agent initialization also failed during:
startBackgroundComposerFromSnapshot
_startCloudAgent
_createAgentReal
Operating System
Windows 10/11
Version Information
3.25.9 (user setup)
For AI issues: which model did you use?
Grok 1.7 High
For AI issues: add Request ID with privacy disabled
a849f955-cb77-40b5-8443-193199170b93
386c782d-8887-464c-b36e-7157997807d2
c9c43b6c-40e0-4b88-9bb6-886b93335ad6
Additional Information
Troubleshooting Already Attempted
Logged out and logged back in multiple times.
Restarted Cursor.
Temporarily disabled Avast HTTPS scanning.
Ran Cursor Network Diagnostics.
Tested authentication through a regular browser.
Confirmed that the website also unexpectedly logs out.
The issue remains unresolved.
Does this stop you from using Cursor
Yes – Cursor is unusable
