[Bug] Claude Code intermittently returns gibberish output requiring manual resumption

Bug Description
During the last couple of hours claude code sometimes suddenly returns gibberish. And I have to manually ask it to resume. It doesn't help if i clear the session, or restart the claude code application. It also happens in multiple different instances for me.

<img width="1268" height="113" alt="Image" src="https://github.com/user-attachments/assets/720ee8ab-5215-438c-bec2-d44dd0094d22" />

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.100
• Feedback ID: 2de4430a-e0b4-4977-baba-1fe9ed1b81eb

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/jonatannyqvist/.local/share/claude/versions/2.1.100 (expected in multi-process scenarios)\n    at dU_ (/$bunfs/root/src/entrypoints/cli.js:2810:2153)\n    at qt6 (/$bunfs/root/src/entrypoints/cli.js:2810:1233)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-10T12:40:06.432Z"}]