Agent editing breaks with null pointer (reading getHTMLElement)

[Haemp]

Describe the Bug

Using the auto model I get the error: Cannot read properties of undefined (reading getHTMLElement) when cursors built in edit tool tries to make changes. This effectively renders cursor useless. It started happening today after I pulled the latest update.

Steps to Reproduce

My exact steps to replicate are:

• Reference a markdown document in your prompt
• Use the auto model setting
• Instruct the AI to make a change that requires multiple edit tool calls. Any sufficiently complex change will trigger this.

I’m using a typescript codebase, nothing complex at all.

Expected Behavior

It should apply the changes to the file.

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.4.2
VSCode Version: 1.99.3
Commit: 07aa3b4519da4feab4761c58da3eeedd253a1670
Date: 2025-08-06T19:23:39.081Z (18 hrs ago)
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.0.0

Additional Information

Please fix this ASAP, I really don’t like using Windsurf.

Does this stop you from using Cursor

Yes - Cursor is unusable

[condor]

hi @Haemp and welcome to Cursor Forum.

Thank you for your bug report. Could you post a Request ID with privacy disabled so we can look into the details? Cursor – Getting a Request ID

[Haemp]

Request ID: af7ecd2a-1f30-4ed7-8ea9-4244fdc32c1c

[condor]

Thank you, are you using any MCPs?

Where do you see this error message? Share screenshot if possible.

[Haemp]

I’ve got all my MCPs turned off at the moment but it doesn’t make a difference. I also tried downgrading to 1.4.1 but I’m getting issues there as well.

Here’s an example screenshot:

I’ve also had this issue with other models than the auto model. Claude Sonnet 4 called out the issue as the search or replace tool (don’t recall exactly).

[condor]

Thank you, sent it to the team for review.

[Haemp]

Thanks! Here is another instance of it happening with GPT-5:

[Haemp]

And here is another one where it reflects on the issue a bit more:

This is completely preventing me from using Cursor