Epic Games Launcher Crashes on MacBook Pro M4 Max - "An Unreal Process Has Crashed: UE4-EpicGamesLauncher"

Development Getting Started & Setup
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Hi everyone,

I’m encountering a persistent issue while trying to install Unreal Engine on my MacBook Pro M4 Max running macOS Sequoia 15.1.1. I’ve followed all the standard steps to install the Epic Games Launcher (downloaded EpicInstaller-17.2.0.dmg from the official website), and everything seems fine until I try to open the app.

Here’s what happens:

  1. I open the Epic Games Launcher.app.
  2. It asks for my system password to confirm file change rights.
  3. Immediately after, the launcher crashes with the error:
    4.*“An Unreal process has crashed: UE4-EpicGamesLauncher.”**
    “You do not have any debugging symbols required to display the callstack for this crash.”*

I’ve tried everything I could think of:

  • Restarting the Mac.
  • Deleting the app and reinstalling.
  • Deleting all associated files (Preferences, Caches, etc.) and reinstalling.
  • Installing via Terminal.
  • Repeating all of the above after reboots.

The problem persists no matter what I do.

My Mac specs:

  • MacBook Pro M4 Max
  • 16 Cores (12 Performance + 4 Efficiency)
  • 64 GB Memory
  • Sequoia 15.1.1 (macOS)

Additional Observations:

  • This happens immediately after confirming file permissions for the Launcher.
  • Logs from the crash mention a failed self-update and missing files like ../../../Engine/Content/Slate/Icons/epic_logo.png. It also reports errors like SIGSEGV: invalid attempt to access memory and mentions TOptional assertions failing.

What I’ve Googled:

I’ve found a few others with similar issues on different Mac models, but I haven’t found a working solution. Some recommend reinstalling Rosetta 2, repairing disk permissions, or modifying network/DNS settings. I’ve tried most of these with no luck.

Question:

  • Is this a known issue for Apple Silicon M4 Max or Sequoia?
  • Is there a workaround or a planned fix for this problem?

I’d greatly appreciate any help, as this has blocked my ability to start using Unreal Engine on my Mac.

Thanks in advance for your support!

6 Likes
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Hey @JumpiiX24,

We’ve addressed an issue causing crashes for some Mac users who recently installed the Epic Games Launcher. If you’re still encountering a crash, please re-download and install the launcher from epicgames.com.

Let me know if it works!

1 Like
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Hi @Amanda.Schade ,

Thank you for the quick response! I just re-downloaded the launcher, and it works perfectly now.

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Hello MacBook Pro M4 Max Unreal engine Can you share your experiences? I am thinking of buying it but I am afraid of having performance problems, Intel 14900hx rtx4090 and MacBook Pro M4 Max I am stuck between these two computers, what is your advice? Thank you for everything and have a good day.

1 Like
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I’m in the same boat as you. I need to make an “Archviz Explorer” project that runs for iPad and for that I must buy a macbook to do the package.

Let me know If you get some useful info :slight_smile: