claude-code - 💡(How to fix) Fix [BUG] Claude Code v2.1.109 duplicates previously rendered content in the terminal UI [1 comments, 2 participants]

TL;DR

The issue can be mitigated by investigating and adjusting the terminal UI rendering logic to prevent duplicated content.

Guidance

• Review the terminal UI rendering code to identify where the duplication of previously rendered blocks is occurring, focusing on the handling of screen state and redraws.
• Verify that the issue is specific to version 2.1.109 by testing previous versions of Claude Code to see if the problem persists.
• Check for any buffering or caching mechanisms in the terminal UI that might be causing old content to be appended instead of cleared.
• Consider adding logging or debugging statements to the rendering logic to track the flow of screen updates and identify where the duplication is happening.

Example

No specific code example can be provided without access to the Claude Codebase, but a general approach might involve reviewing functions responsible for updating the terminal UI, such as those handling screen redraws, buffer management, or state updates.

Notes

The exact cause of the issue is unclear without more information about the internal workings of Claude Code's terminal UI rendering. The problem seems to be related to how the UI handles redraws and updates, possibly due to changes introduced in version 2.1.109.

Recommendation

Apply a workaround by adjusting the terminal UI rendering logic, as the root cause seems to be related to how the screen is updated and redrawn, rather than a straightforward versioning issue that could be resolved by upgrading.