[Bug] Parallel bash tool execution causes process freeze and unresponsive CLI

Bug Description
"lately when claude is running 3 bash tools in parallel, it tends to freeze the claude instance and I have to wait a few minutes or close the terminal. ctrl+c wont work"

Environment Info

• Platform: darwin
• Terminal: windsurf
• Version: 2.1.12
• Feedback ID: 7d0e425f-84f4-41e2-9a91-6c76a07dc0e7

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/[username]/.local/share/claude/versions/2.1.12 (expected in multi-process scenarios)\n    at HZR (/$bunfs/root/claude:3279:2091)\n    at aYA (/$bunfs/root/claude:3279:1202)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-01-20T04:01:37.985Z"}]