[Error] unhandlederror-Cannot read properties of null (reading 'node')

## Error Message
````
unhandlederror-Cannot read properties of null (reading 'node')
````

## Stack Trace
    at JTt.delete ([./src/vs/editor/common/model/pieceTreeTextBuffer/pieceTreeBase.ts:958:30](https://github.com/microsoft/vscode/blob/4fe60c8b1cdac1c4c174f2fb180d0d758272d713/src/vs/editor/common/model/pieceTreeTextBuffer/pieceTreeBase.ts#L958))
    at a._doApplyEdits ([./src/vs/editor/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.ts:500:20](https://github.com/microsoft/vscode/blob/4fe60c8b1cdac1c4c174f2fb180d0d758272d713/src/vs/editor/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.ts#L500))
    at a.applyEdits ([./src/vs/editor/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.ts:381:30](https://github.com/microsoft/vscode/blob/4fe60c8b1cdac1c4c174f2fb180d0d758272d713/src/vs/editor/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.ts#L381))
    at E1e._applyTextEditsToContent ([./src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingCheckpointTimelineImpl.ts:726:14](https://github.com/microsoft/vscode/blob/4fe60c8b1cdac1c4c174f2fb180d0d758272d713/src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingCheckpointTimelineImpl.ts#L726))
    at E1e._applyOperationToState ([./src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingCheckpointTimelineImpl.ts:640:19](https://github.com/microsoft/vscode/blob/4fe60c8b1cdac1c4c174f2fb180d0d758272d713/src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingCheckpointTimelineImpl.ts#L640))
    at E1e._replayOperations ([./src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingCheckpointTimelineImpl.ts:567:29](https://github.com/microsoft/vscode/blob/4fe60c8b1cdac1c4c174f2fb180d0d758272d713/src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingCheckpointTimelineImpl.ts#L567))
    at async E1e.getContentAtStop ([./src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingCheckpointTimelineImpl.ts:365:19](https://github.com/microsoft/vscode/blob/4fe60c8b1cdac1c4c174f2fb180d0d758272d713/src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingCheckpointTimelineImpl.ts#L365))
    at async ([./src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingCheckpointTimelineImpl.ts:407:20](https://github.com/microsoft/vscode/blob/4fe60c8b1cdac1c4c174f2fb180d0d758272d713/src/vs/workbench/contrib/chat/browser/chatEditing/chatEditingCheckpointTimelineImpl.ts#L407))

Raw Stack Trace (minified)

````
TypeError: Cannot read properties of null (reading 'node') at JTt.delete (out/vs/workbench/workbench.desktop.main.js:679:748) at a._doApplyEdits (out/vs/workbench/workbench.desktop.main.js:688:2724) at a.applyEdits (out/vs/workbench/workbench.desktop.main.js:688:1380) at E1e._applyTextEditsToContent (out/vs/workbench/workbench.desktop.main.js:3280:33152) at E1e._applyOperationToState (out/vs/workbench/workbench.desktop.main.js:3280:31862) at E1e._replayOperations (out/vs/workbench/workbench.desktop.main.js:3280:30657) at async E1e.getContentAtStop (out/vs/workbench/workbench.desktop.main.js:3280:27539) at async out/vs/workbench/workbench.desktop.main.js:3280:28076
````

## Details
| Property | Value |
| --- | --- |
| Bucket ID | [`e978790a-e245-ec74-af9b-757c3027d493`](https://errors.code.visualstudio.com/bucket/e978790a-e245-ec74-af9b-757c3027d493?product=VSCode&extension=core&commit=4fe60c8b1cdac1c4c174f2fb180d0d758272d713) |
| Version | 1.127.0 |
| Commit | [`4fe60c8b`](https://insiders.vscode.dev/github/microsoft/vscode/tree/4fe60c8b1cdac1c4c174f2fb180d0d758272d713) |
| Last Seen | Sun Jul 05 2026 23:59:42 GMT+0000 (Coordinated Universal Time) |
| Platforms | Windows, Mac, Linux |
| Product | VSCode |

---
*This issue was automatically created from the VS Code Errors Dashboard*