claude-code - 💡(How to fix) Fix [BUG] Resize-redraw UI duplication still reproducing on 2.1.119 after #49086 fix [1 comments, 2 participants]

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anthropics/claude-code#53038Fetched 2026-04-25 06:14:03
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The fix shipped in 2.1.116 for #49086 (referenced from the close of #46462) does not fully resolve resize-induced UI duplication. Still reproducing on 2.1.119, nearly every session.

Root Cause

The fix shipped in 2.1.116 for #49086 (referenced from the close of #46462) does not fully resolve resize-induced UI duplication. Still reproducing on 2.1.119, nearly every session.

RAW_BUFFERClick to expand / collapse

Summary

The fix shipped in 2.1.116 for #49086 (referenced from the close of #46462) does not fully resolve resize-induced UI duplication. Still reproducing on 2.1.119, nearly every session.

Environment

  • Claude Code: 2.1.119
  • macOS: 26.1 (Tahoe, Darwin 25.1.0)
  • Terminal: Terminal.app v465
  • Shell: zsh
  • TERM: xterm-256color

Behavior

  • Triggered by terminal window resize (SIGWINCH).
  • Reproduces across almost every session, not state-dependent.
  • Previous frames remain in scrollback; new redraw stacks below rather than replacing in-place — same shape as #46462 / #49086.

Workflow impact

Hard friction for resize-heavy workflows (frequent window-size changes between focused work and reference panes). Ctrl+L clears it but breaks flow on every resize.

Related

  • #46462 (closed as duplicate of #49086)
  • #49086 (closed as fixed in 2.1.116)
  • #16578 (older redraw issue, closed not-planned)

Happy to capture a screen recording if it helps triage.

extent analysis

TL;DR

The issue of resize-induced UI duplication may require further fixes beyond version 2.1.116, and a temporary workaround could involve using Ctrl+L to clear the duplication, albeit with workflow disruption.

Guidance

  • Verify that the issue persists across different terminal sizes and window resize actions to confirm it's not specific to a particular setup.
  • Test if the problem occurs with other terminal emulators or environments to isolate if it's specific to Terminal.app or the Claude Code version.
  • Consider providing a screen recording as offered to help triage the issue, as visual confirmation can aid in understanding the problem's nature.
  • Explore if there are any configuration options or settings in Claude Code or the terminal that could mitigate the UI duplication issue temporarily.

Example

No specific code snippet can be provided without more context on the internal workings of Claude Code or the terminal environment.

Notes

The fix mentioned in version 2.1.116 for issue #49086 does not seem to fully address the problem, indicating a potential need for further patches or updates. The issue's reproducibility across sessions and environments suggests a deeper technical issue.

Recommendation

Apply workaround: Given the current information, using Ctrl+L to clear the UI duplication, despite its workflow impact, seems to be the most immediate way to manage the issue until a more permanent fix is available.

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claude-code - 💡(How to fix) Fix [BUG] Resize-redraw UI duplication still reproducing on 2.1.119 after #49086 fix [1 comments, 2 participants]