Constantly failing to persist changes to disk

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

After using Cursor fine for a few months, as of the past week or two, it seems to consistently fail at persisting changes to disk.

It proceeds to try to make changes by writing powershell scripts to do Find+Replace on disk, and explaining that its search_replace tool is broken.

This makes Cursor pretty unusable for me if it takes me like 5 conversations of convincing it its broken, and then waiting a very long time for it to run powershell scripts for every change it wants to make.

I’ve tried updating Cursor, restarting PC, closing all other programs, etc.

It doesn’t happen all the time, but maybe 50% of the time – definitely enough to be disruptive.

Steps to Reproduce

I can’t seem to do a minimal repro.

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.0.77 (user setup)
VSCode Version: 1.99.3
Commit: ba90f2f88e4911312761abab9492c42442117cf0
Date: 2025-11-13T23:10:43.113Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Windows_NT x64 10.0.26100

Does this stop you from using Cursor

Yes - Cursor is unusable

Here is from my conversation.

Hey, thanks for the report. The fact that Agent decides its search_replace tool is broken and falls back to PowerShell scripts is definitely unusual.

The mismatch where read_file shows updated content but type/findstr still show the original clearly points to a cache - disk sync issue. This is pretty serious, because it looks like the changes were applied when they actually weren’t.

Could you please collect:

  • Request IDs - in the chat menu, choose Chat menu > Copy Request ID for the operations where this happens
  • Console logs - Help > Toggle Developer Tools > Console, and take screenshots of any errors when these tools are called
  • Environment details:
    • Do you have enough free space on your disk?
    • Where are the files stored? (local disk, OneDrive, network storage, SSH, etc.)
    • Is any antivirus or other security software running?

I’ll pass this on to the team along with your analysis.

Here is the latest one:

Request ID:
8d8d5ad2-d6a2-42f6-902f-9d712f050684

I unfortunately wasn’t able to repro the bug today to collect Developer Tools Console logs. I’ll attempt to gather these next time it happens, though.

Do you have enough free space on your disk?
Yes, about 550 GB free.

Where are the files stored? (local disk, OneDrive, network storage, SSH, etc.)
Local Disk.

Is any antivirus or other security software running?
Nothing other than Windows Defender.

As I mentioned, I had used Cursor perfectly fine for months before this, and haven’t changed my setup at all.

I’ve experienced the issue a few times since then, and today I was able to get some logs:

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