Regression in 2.1.220: screen flicker/white flash in Apple Terminal during redraws (not present in 2.1.212)
Status Open
Reported on v2.1.212
Maintainer reply None cached
Workaround ✓ Mentioned in description ↑
Activity 0 comments · opened Jul 29, 2026
Description
Periodic screen flicker (a brief white flash) in the terminal area, roughly once a minute, while Claude Code is rendering. It looks like full-screen repaints without synchronized output — the terminal's light background briefly shows through during redraws, perceived as a flash.
Environment
- macOS Sequoia 15.7.7 (Darwin 24.6.0)
- Apple Terminal (TERM_PROGRAM=Apple_Terminal), default light "Basic" profile
- Claude Code theme: dark-ansi
- Custom statusline script (plain jq text output)
Regression
- 2.1.212: does NOT reproduce (verified side by side by running the old binary from ~/.local/share/claude/versions/2.1.212)
- 2.1.220: reproduces consistently
Workaround
Running the previous binary directly: ~/.local/share/claude/versions/2.1.212. Switching the terminal to a dark profile also masks the flash (background no longer contrasts during repaint), but the extra full repaints remain.
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