Why does LumaFusion crash when minimized? (macOS)

We have recently become aware of an issue affecting LumaFusion in macOS 27. When LumaFusion is either minimized or navigated away from while in full screen, the app can unexpectedly crash. This will become apparent when the crash log appears on the screen. We have been in communication with Apple about this issue and hope to have it resolved soon. In the meantime, there are a couple of workarounds:

  • Hide LumaFusion (CMD + H) rather than minimizing it to the Dock.
  • Do not navigate to another app while LumaFusion is in full screen. Keep it windowed.

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