Claude Desktop v1.1.4498 crashes on launch - macOS 26.4 beta

Bug Report

Claude Desktop crashes immediately on launch (within ~13 seconds) every time. Consistent repro — 4 crashes in a row.

Environment

• App version: 1.1.4498
• macOS: 26.4 beta (build 25E5207k)
• Hardware: Mac14,15 (Apple Silicon, M2)
• Electron Framework: 40.4.1

Crash Details

• Exception: EXC_BREAKPOINT (SIGTRAP) on main thread (com.apple.main-thread)
• Crash location: Electron Framework / V8 engine (v8::CpuProfileNode::GetNodeId())
• Signal: SIGTRAP — hits a fatal assertion during startup
• Timing: App launches and crashes within ~13 seconds, never reaches UI

Steps to Reproduce

1. Install Claude Desktop v1.1.4498 on macOS 26.4 beta
2. Launch the app
3. App crashes immediately

What I've Tried (all still crash)

• Clean reinstall (deleted app, re-downloaded, reinstalled)
• Cleared ~/Library/Application Support/Claude/Cache and GPUCache
• Launched with --disable-gpu
• Launched with --disable-gpu --disable-software-rasterizer --disable-gpu-compositing --in-process-gpu

Crash Reports

4 crash reports available at ~/Library/Logs/DiagnosticReports/Claude-2026-02-28-*.ips

<details>
<summary>Crash stack trace (faulting thread)</summary>

Thread 0 (com.apple.main-thread) — triggered crash:
  v8::CpuProfileNode::GetNodeId() const + 97348
  v8::CpuProfileNode::GetNodeId() const + 168616
  rust_png$cxxbridge1$Reader$try_get_chrm + 171196
  _v8_internal_Node_Print(void*) + 5952188
  v8::Isolate::RequestInterrupt + 50048
  v8::TryCatch::Exception() const + 584
  v8::ObjectTemplate::SetHandler + 40500
  ElectronMain + 120
  start + 6992

</details>

Workaround

Using Claude Code (CLI) and claude.ai in browser as alternatives.