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LumaFusion Crashes When Minimized on Mac

Ongoing Mac Updated October 21, 2026

Quick answer

On macOS 27, LumaFusion can crash when minimized or when you switch away from it in full screen. Luma Touch is working with Apple; until then hide it with Cmd+H and keep it windowed.

Most likely fix: Hide instead of minimizing.

Symptoms

A crash log appears after minimizing LumaFusion to the Dock or switching apps while it's in full screen.

Why it happens

  • A macOS 27 issue affecting LumaFusion (known issue)

How to fix it

Try these in order — the most common fix is first.

  1. 1. Hide instead of minimizing

    1. Press Cmd+H to hide LumaFusion instead of minimizing it to the Dock

  2. 2. Avoid full screen

    1. Keep LumaFusion in a window rather than full screen when switching to other apps

  3. 3. Update when a fix ships

    1. Keep LumaFusion and macOS updated from the App Store

This guide also covers

  • lumafusion mac crash
  • lumafusion crashes when minimized
  • lumafusion macos 27 crash

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