[Bug] Claude Code pauses/stalls during execution, requires ESC to resume

Bug Description
Claude code is pausing, stopping or stalling during routine operations. Pressing escape will let it continue for a while. May have stopped 20 or more times per hour.

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.1.87
• Feedback ID: a5ed956f-ec75-4dd8-b001-5d9cdad3e9a7

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/seanc/.local/share/claude/versions/2.1.87 (expected in multi-process scenarios)\n    at _p_ (/$bunfs/root/src/entrypoints/cli.js:2851:2138)\n    at Vn6 (/$bunfs/root/src/entrypoints/cli.js:2851:1218)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-01T01:15:28.987Z"}]