Constant crashes with all versions of Cesium and Unreal

Cesium for Unreal
1

Last year Cesium never crashed. Now it crashes constantly . This happens when I am executing an operation like, importing an asset or when making a blueprint actor and adding a text in this actor , but also when I am trying to save my project. I have tried Unreal 5.3, 5.4 and 5.5 and different versions of Cesium. Cesium works fine, but these crashed occur constantly. Here is the log I am getting with every crash:

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x0000000000000024

ntdll
ntdll
ntdll
dxgi
GTIII_OSD64
GTIII_OSD64
GTIII_OSD64
GTIII_OSD64
UnrealEditor_D3D12RHI
UnrealEditor_D3D12RHI
UnrealEditor_D3D12RHI
UnrealEditor_D3D12RHI
UnrealEditor_SlateRHIRenderer
UnrealEditor_SlateCore
UnrealEditor_UnrealEd
UnrealEditor_Core
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_AssetTools
UnrealEditor_AssetTools
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_DisplayClusterEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

2

Hi @Laurentius1984, welcome to the community!

I’m sorry that you’re experiencing issues with the plugin. Can you please provide more information so we can troubleshoot?

  • What version of Cesium for Unreal are you using?
  • Can you reproduce this error using the Cesium for Unreal Samples project?
  • Please give us step-by-step instructions for reproducing the error, either from the Cesium for Unreal Samples or a blank project.

This would help us greatly. Thank you!

3

I searched for GTIII_OSD64 and found out there was a topic by someone who said GPU tweak III causes this crash. I disabled it during UE5 when running Cesium and until now I don’t experience any crashes. If they return I will post again. Hopefully you can resolve this issue, since I often use this app, especially with UE5 to cool down .