[BUG] Claude 2.1.68 On Ubuntu 22.04.4 LTS Last Key input doesn't appear until another key is pressed
Resolved 💬 4 comments Opened Mar 4, 2026 by aorheivault Closed Apr 3, 2026
Preflight Checklist
- [x] I have searched existing issues and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code
What's Wrong?
When I run Claude in any session the Claude Code terminal does not display the last character that I input until I enter another keypress. For example if I enter the characters k and e the e character will not appear until the next keypress happens. It does not consistently behave this way. At times all characters are correctly displayed in the terminal, other times all characters wait for the next keypress. The behavior seems random.
Claude 2.1.68
Ubuntu 22.04.4 LTS
GNOME Terminal 3.44.0
What Should Happen?
I should see all characters when I type them.
Error Messages/Logs
Steps to Reproduce
- In GNOME terminal type
claude. - Attempt to enter any characters in the Claude Code terminal.
- Notice that the last character that was entered is not displayed until another key is pressed
Claude Model
Opus
Is this a regression?
I don't know
Last Working Version
_No response_
Claude Code Version
2.1.68
Platform
Anthropic API
Operating System
Ubuntu/Debian Linux
Terminal/Shell
Other
Additional Information
_No response_
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