claude-code - 💡(How to fix) Fix [Bug] Agent context lost when switching to fullscreen mode in TUI [1 comments, 2 participants]

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/joelc/.local/share/claude/versions/2.1.119 (expected in multi-process scenarios)\n at mH6 (/$bunfs/root/src/entrypoints/cli.js:2736:2177)\n at E$8 (/$bunfs/root/src/entrypoints/cli.js:2736:1257)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T00:54:31.234Z"}]

TL;DR

Run Claude with the --agent option in a non-fullscreen mode or try resetting the agent configuration to mitigate the issue.

Guidance

• The error message suggests a lock acquisition failure, which might be related to the fullscreen mode or the agent configuration.
• Try running Claude without the --agent option or with a different agent to see if the issue persists.
• Verify if the problem occurs in other terminal applications or only in iTerm.app.
• Check the Claude documentation for any known issues or configuration options related to fullscreen mode and agent management.

Notes

The provided error message is not directly related to the fullscreen mode, but it might be a symptom of a larger issue. More information about the Claude configuration and the agent setup would be necessary to provide a more accurate solution.

Recommendation

Apply workaround: Try running Claude without the --agent option or with a different agent to see if the issue persists, as this might help mitigate the problem until a more permanent solution is found.