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What is the flickering issue?

Sometimes Claude Code scrolls up far away, and I struggle to scroll it down again. And I have to restart the terminal and Claude Code for it to behave well again. But I don't know if this is the flickering issue, or if it's due to a bug in Windows, Alacritty, Zsh or something else.

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Thank you, that's the primary issue I have too, I'm surprised it's not being talked more here in this thread. I am on iTerm2 in macOS so not specific to your environment. It's really annoying and restarting doesn't fix it in my case, only a fresh session.

I was having this issue with Claude code, and even worse with Gemini, while using the VSCode terminal. I switched to Ghostty and I don't have any flickering or weird scrolling issues at all anymore.

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