The chat is generating thousands of blank blocks in just few seconds

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

The chat is generating thousands of blank blocks in just few seconds
As you can see in the Attached image

Steps to Reproduce

OK
Actually I were using the Ask mode and then switched to agent mode then i undo the Agent Responses then again Redo the Checkpoint again undo then change the prompt then Enter Agent Generating the Response during response generate random blank boxes thousands in some seconds.

Screenshots / Screen Recordings

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.3.18 (system setup)
VSCode Version: 1.105.1
Commit: df371ac0d93fe1a68d05eeb59a09c5c39add0c80
Date: 2026-01-01T01:49:45.089Z
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 10.0.26200

For AI issues: which model did you use?

Gemini 3 flashVersion: 2.3.18 (system setup)
VSCode Version: 1.105.1
Commit: df371ac0d93fe1a68d05eeb59a09c5c39add0c80
Date: 2026-01-01T01:49:45.089Z
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 10.0.26200

For AI issues: add Request ID with privacy disabled

Request ID: ec6ed42f-3541-4832-8345-bb3e7eaf03c2

Does this stop you from using Cursor

No - Cursor works, but with this issue

Hey there @Electro!

Thanks for reporting.

I tried, but I can’t reproduce this. Could you reproduce this with privacy mode disabled (Cursor Settings > General > Privacy) and share a new request ID so that we can take a deeper look?