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MacOS with Epic Games: DllNotFoundException [ERROR] EOS not initialized in time.

VoodooPhysics

By VoodooPhysics

    • Branch: Live Branch Version: OSX Closed

Howdy,

I'm not sure if this problem has been reported in the past, it seems you guys are trying to save resources by limiting the amount of searches I can make to once every 20 seconds, there's also no way for me to filter by any of the categories, versions or branches each of these issues are being attributed with by the people reporting the bugs. So maybe this is more spam into the 14878 issues you have, maybe it isn't.

I'm currently stuck in the splash screen with the Klei logo without any response from the game after any amount of time (I've waited 10min once). I'm currently using Epic Games and playing on MacOS Sonoma 14.8.2, with an Apple M1 Pro chip. The logs state a DllNotFoundException: libEOSSDK-Mac-Shipping assembly:<unknown assembly> type:<unknown type> member:(null) with [ERROR] EOS not initialized in time.

EOS here seems to be the epic games online service. Not sure if this is a common error or not just seems weird.

The logs below:

2025-12-12 09:54:47.455 Oxygen Not Included[7333:367545] WARNING: Secure coding is not enabled for restorable state! Enable secure coding by implementing NSApplicationDelegate.applicationSupportsSecureRestorableState: and returning YES.
Mono path[0] = '/Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Resources/Data/Managed'
Mono config path = '/Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/MonoBleedingEdge/etc'
Input System module state changed to: Initialized.
[PhysX] Initialized MultithreadedTaskDispatcher with 8 workers.
Initialize engine version: 2022.3.62f2 (7670c08855a9)
[Subsystems] Discovering subsystems at path /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Resources/Data/UnitySubsystems
GfxDevice: creating device client; threaded=1; jobified=0
preferred device: Apple M1 Pro (high power)
Metal devices available: 1
0: Apple M1 Pro (high power)
Using device Apple M1 Pro (high power)
Initializing Metal device caps: Apple M1 Pro
Begin MonoManager ReloadAssembly
- Loaded All Assemblies, in 0.074 seconds
- Finished resetting the current domain, in 0.001 seconds
[PhysX] Initialized MultithreadedTaskDispatcher with 8 workers.
UnloadTime: 0.471542 ms
[09:54:48.682] [1] [INFO] Applying resolution 3600x2252 @60hz (fullscreen: Windowed)
[09:54:48.688] [1] [INFO] Low Res Textures? No
[09:54:48.700] [1] [INFO] Date: 12/12/2025 09:54:48
[09:54:48.701] [1] [INFO] Build: ??-704096-? (release)
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping.dylib
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping.dylib
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping.so
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping.bundle
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping.dylib
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping.dylib
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping.so
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping.bundle
Fallback handler could not load library /Users/Shared/Epic Games/OxygenNotIncluded/OxygenNotIncluded.app/Contents/Frameworks/MonoEmbedRuntime/osx/libEOSSDK-Mac-Shipping
DllNotFoundException: libEOSSDK-Mac-Shipping assembly:<unknown assembly> type:<unknown type> member:(null)
at (wrapper managed-to-native) Epic.OnlineServices.Platform.PlatformInterface.EOS_Initialize(Epic.OnlineServices.Platform.InitializeOptionsInternal&)
at Epic.OnlineServices.Platform.PlatformInterface.Initialize (Epic.OnlineServices.Platform.InitializeOptions options) [0x0002d] in <a9d3505db38741e8a7786d2d604077fb>:0
at EpicManager.Awake () [0x0004d] in <a9d3505db38741e8a7786d2d604077fb>:0
UnityEngine.GameObject:Internal_AddComponentWithType(GameObject, Type)
UnityEngine.GameObject:AddComponent(Type)
UnityEngine.GameObject:AddComponent()
EpicManager:get_Instance()
EpicManager:get_Initialized()
DistributionPlatform:Initialize()
LaunchInitializer:Update()
 
[09:54:48.714] [1] [ERROR] EOS not initialized in time.
EOS not initialized in time.
[09:54:48.720] [1] [INFO] Applying resolution 3600x2252 @60hz (fullscreen: Windowed)
[09:54:48.720] [1] [INFO] Low Res Textures? No
[09:54:48.721] [1] [INFO] Date: 12/12/2025 09:54:48

Thanks in advance.

Screenshot 2025-12-12 at 10.53.17.png

Steps to Reproduce
  • Install Epic Games on Mac OS Sonoma 14.8.2, 16 GB memory, Apple M1 Pro.
  • Install Oxygen not included with Spaced Out and Bionic Booster Pack.
  • Try to run the game and witness a frozen splash screen.
  • The problem persists with different screen resolutions, both in windowed and full screen mode.
Go to bugs

User Feedback


VoodooPhysics

Hey there, thanks for the quick reply. That thread exactly solves the issue. It seems epic games is suddenly not recognising ONI to be needing rosetta, however I also noticed that ONI.app has the "kind" as Application (Universal), which might be the reason for why it's running without rosetta as it should have Application (Intel) in order to be correctly associated with rosetta execution.

Launching epic games with rosetta forces ONI to run with rosetta too when launched through their application.

Thanks for the help!

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