Project Rules settings are lost

Describe the Bug

Project Rules settings are lost.

Steps to Reproduce

  1. Create a rule file (*.mdc) and configure settings.
  2. Close Cursor.
  3. Launch Cursor from the workspace file (or right-click on the workspace folder).
  4. Check Cursor Settings and you will see that the rules you configured in step 1 have been lost.

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.3.9 (user setup)
Commit: 1.99.3
Date: 54c27320fab08c9f5dd5873f07fca101f7a3e070
Electron: 2025-08-01T20:19:30.453Z
ElectronBuildId: 34.5.1
Chromium: undefined
Node.js: 132.0.6834.210
V8: 20.19.0
OS: 13.2.152.41-electron.0

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

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