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Flickering/rapid scroll from top to bottom for every character output or typed/random scrolls to top #23986

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opened 2026-01-31 08:58:16 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 08:58:16 +00:00
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Originally created by @Caleb-KS on GitHub (Jan 23, 2026).

Windows Terminal version

1.23.13503.0

Windows build number

10.0.26100.7623

Other Software

While running common REPLs (Ink) or Claude Code, sometimes the terminal tab gets into a state where it rapidly scrolls to the top and all the way back down in the terminal history for every character typed or output while the REPL is running.

I am not sure how to reproduce it, but it happens sooner or later. Once a tab is "infected" it doesn't recover. I've played with hardware acceleration settings and other settings that seem related. Nothing affects it that I can tell.

If you look at the Claude Code github issues, you will see multiple people have submitted issues.

The weird thing is I don't think it's only Claude Code, since I had Claude Code write a REPL to do something else (it used Ink as the framework) and it also had the issue.

FWIW I have a HP ZBook 15 G9 with Intel and Nvidia graphics cards.

Steps to reproduce

Use Claude Code in a Windows Terminal tab for a while.

Expected Behavior

No response

Actual Behavior

Scrolling rapidly from top to bottom of terminal history.

Or just random scroll all the way to the top and stay there.

Originally created by @Caleb-KS on GitHub (Jan 23, 2026). ### Windows Terminal version 1.23.13503.0 ### Windows build number 10.0.26100.7623 ### Other Software While running common REPLs (Ink) or Claude Code, sometimes the terminal tab gets into a state where it rapidly scrolls to the top and all the way back down in the terminal history for every character typed or output while the REPL is running. I am not sure how to reproduce it, but it happens sooner or later. Once a tab is "infected" it doesn't recover. I've played with hardware acceleration settings and other settings that seem related. Nothing affects it that I can tell. If you look at the Claude Code github issues, you will see multiple people have submitted issues. The weird thing is I don't think it's only Claude Code, since I had Claude Code write a REPL to do something else (it used Ink as the framework) and it also had the issue. FWIW I have a HP ZBook 15 G9 with Intel and Nvidia graphics cards. ### Steps to reproduce Use Claude Code in a Windows Terminal tab for a while. ### Expected Behavior _No response_ ### Actual Behavior Scrolling rapidly from top to bottom of terminal history. Or just random scroll all the way to the top and stay there.
claunia added the Needs-TriageIssue-Bug labels 2026-01-31 08:58:16 +00:00
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Reference: starred/terminal#23986
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