[BUG] CC Terminal display corrupted with garbled characters throughout every single session

Found 3 possible duplicate issues:

1. https://github.com/anthropics/claude-code/issues/59239
2. https://github.com/anthropics/claude-code/issues/59401
3. https://github.com/anthropics/claude-code/issues/59509

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🤖 Generated with Claude Code

I suspect it is correlated with the new /goal command in cc version 2.1.142

Thanks for the report! Fix incoming

same issue in jupyterlab terminal

<img width="316" height="50" alt="Image" src="https://github.com/user-attachments/assets/c029eec6-37c8-4a3c-a290-b1caaea4288c" />

Same issue. severely garbled text. 2.2.143 version. the only way to save the session is to actually /save and then /resume

same issue for me as well, macos tahoe 26.5. starts out fine and gets more and more garbled progressively

VsCode:

Version: 1.120.0 (Universal)
Commit: 0958016b2af9f09bb4257e0df4a95e2f90590f9f
Date: 2026-05-12T20:17:22Z (5 days ago)
Electron: 39.8.8
ElectronBuildId: 13870025
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Darwin arm64 25.5.0

Oh-my-zsh version: master (a071263)

Font: MesloLGS NF size 13

Hello, this issue should have been fixed in v2.1.144. Could you please try to update and confirm if it hasn't? Thanks!

This issue was fixed as of version 2.1.144.

Not fixed in 2.1.144 for me. Using Claude Code in VScode terminal on MacOS

<img width="687" height="495" alt="Image" src="https://github.com/user-attachments/assets/50a7785f-a007-4446-bd26-b2850e7a9857" />

also not fixed in Claude Code v2.1.145 in VScode terminal on MacOS

<img width="400" height="66" alt="Image" src="https://github.com/user-attachments/assets/b19d5548-643e-406f-84cc-0f822c9462d8" />

not fixed in 2.1.145 for me as well..

Problem in 2.1.145 as well

continuing to see issue in 2.1.145 it has gotten worse after continued usage and is now almost completely unusable

I find resizing the terminal or if using on VS Code terminal or equivalent then full-screen toggling will rectify it briefly. Definitely more noticeable after longer sessions. Highlighting the terminal text reveals the underlying actual text but sometimes toggles the funny symbols to their correct legible counterparts while funny'ing the already legible text.

Also can confirm experiencing this on Claude CLI latest as of this comment on MacOS more than Windows. Forgive me I use both all day and forgot where I saw it happening today but definitely on the Mac.

The issue is still present in 2.1.145.
jupyterlab terminal on chrome in macos

Confirmed still an issue in 2.1.146.

OSX/VSCode

<img width="603" height="295" alt="Image" src="https://github.com/user-attachments/assets/166f82a0-cb39-4692-a4ae-6159a01c15b9" />

Could you please set this in VSCode settings and try again? "terminal.integrated.gpuAcceleration": "off"

This is an upstream issue, not a Claude Code bug. Thank you!

Could you please set this in VSCode settings and try again? "terminal.integrated.gpuAcceleration": "off" This is an upstream issue, not a Claude Code bug. Thank you!

I'm not using vscode but jupyterlab and I also observed this issue - thanks!

Could you please set this in VSCode settings and try again? "terminal.integrated.gpuAcceleration": "off" This is an upstream issue, not a Claude Code bug. Thank you!

Thanks, worked for me!

<img width="152" height="53" alt="Image" src="https://github.com/user-attachments/assets/420d761e-0045-4ce5-8d9f-b21a3b54069d" />

still exists in jupyterlab terminal

Could you please set this in VSCode settings and try again? "terminal.integrated.gpuAcceleration": "off" This is an upstream issue, not a Claude Code bug. Thank you!

thanks it worked for me, does it have any impact on the machine or processes running within it?

Yes it worked for me too

Sent from my iPhone

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lavacakechef left a comment (anthropics/claude-code#59539) <https://github.com/anthropics/claude-code/issues/59539#issuecomment-4524675184> Could you please set this in VSCode settings and try again? "terminal.integrated.gpuAcceleration": "off" This is an upstream issue, not a Claude Code bug. Thank you! thanks it worked for me, does it have any impact on the machine or processes running within it? — Reply to this email directly, view it on GitHub <https://github.com/anthropics/claude-code/issues/59539#issuecomment-4524675184>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BNPIF6YB6MYY4NRCYZM7UCL44FJ2FAVCNFSM6AAAAACZAAB3HOVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DKMRUGY3TKMJYGQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you commented.Message ID: @.***>

There are more mitigations on the way for this, but the simplest, permanent fix is to turn off terminal GPU acceleration in VSCode/Cursor until the upstream xterm.js bug fix makes it into those editors.

To quickly fix, try resizing the terminal or (as of today's Claude Code build) ctrl-L.