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Windows Smart App Control (SAC) is blocking SimDLL.dll and preventing save loading / new game generation

Dagobaart

By Dagobaart

    • Branch: Live Branch Version: Windows Pending

I played ONI yesterday (09-04-2026) without any issues,

But as of today Windows Smart App Control (SAC) is actively blocking simDLL.dll because of a violated code integrity policy breaking the game.

 

image.png.feec5c0189e1cefa1dea39e77f0e994b.png

I've attached part of the Smart App Control event log in xml format

 

Symptoms:

1. Oni crashes when trying to load a savegame, 

Error: 

Error in SaveLoader.SaveLoader.OnSpawn at (0.00, 0.00, 0.00)

System.DllNotFoundException: SimDLL assembly:<unknown assembly> type:<unknown type> member:(null)
  at (wrapper managed-to-native) Sim.SIM_Initialize(Sim/GAME_MessageHandler)
  at SaveLoader.OnSpawn () [0x0000e] in <2dc0f3c9a05e46fc914773ba3282cc6a>:0 
  at KMonoBehaviour.Spawn () [0x0005d] in <f216bcfdd6e24a84ab7fdf9f59adc3af>:0 
Build: U58-720697-SCRPN

 

2. World generation freezes when generating a new game.

World generation starts, but is halted on `Generating interest...`

image.png.ec593c56377bddf3758388785b9411aa.png

 

 

Eventlog_Microsoft-Windows-CodeIntegrity_Operational.xml

Steps to Reproduce
  • Start game
  • Load an existing save
  • Game crashes with an error

 

  • Start game
  • start a new game
  • Game "freezes on world generation, animations till work, but progression stops on 'Generating interest...'
Go to bugs

User Feedback


EricKlei

Microsoft has incorrectly flagged this issue in their cloud based security services. I've submitted a false positive report but it may take some time for their system to clear up the issue.

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Dagobaart

Thank you for the update,

It looks like Microsoft already cleared the flag.

The game works again for me, with Windows Smart App Control Enabled.

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