Multiple File Instances Issue in Cursor Editor - Critical Bug Affecting Development Efficiency

[WILSON-DynaCloud]

Title: Multiple File Instances Issue in Cursor Editor - Critical Bug Affecting Development Efficiency

Description:
A critical bug in Cursor's file handling system creates multiple instances of the same file, causing development confusion and significant time waste.

Problem Details:
When using the edit_file tool, the system creates multiple instances of the same file:

• One in virtual path (e.g., python:\src\test_tts.py)
• Another in actual path (e.g., c:\Proj\Fami\src\test_tts.py)

Impact:

• Edit operations may modify the wrong file instance
• Execution may use unmodified file versions
• Developers waste significant time debugging
• Multiple instances cause confusion in file management

Specific Example:
File: test_tts.py

• Multiple instances appeared during text-to-speech development
• One instance contained "5566" lyrics
• Another instance contained "Chu Shi Biao" (出師表)
• This caused 2 hours of confusion and debugging

Current Workaround:

• Manually close all file instances
• Use absolute file paths
• Restart the editor

Frequency:

• This issue occurs repeatedly
• Has been observed multiple times in different development sessions
• Each occurrence requires manual intervention

Suggested Fix:

1. Implement file instance uniqueness check
2. Ensure edit_file tool maintains single file instance
3. Properly resolve relative and absolute paths to same file
4. Add file instance tracking and management
5. Prevent creation of duplicate file instances

Severity: High

• Affects development efficiency
• Causes significant time waste
• Leads to confusion and potential errors
• Impacts multiple development sessions

Environment:

• Windows 10.0.26100
• Cursor Editor
• Python development environment

Steps to Reproduce:

1. Open a Python file
2. Use edit_file tool multiple times
3. Observe multiple instances of same file
4. Try to edit and execute the file
5. Notice inconsistencies between instances

Expected Behavior:

• Single file instance should be maintained
• All edits should modify the same file
• File execution should use the latest version

Actual Behavior:

• Multiple file instances are created
• Edits may modify wrong instance
• Execution may use wrong version