Unhandled Exception: EXCEPTION_ACCESS_VIOLATION

Development Rendering
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1

Hi, I am using UE5.1, 3090ti, DX12 with path tracing getting this error, what could be the reason?

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000000

UnrealEditor_MovieSceneCapture
UnrealEditor_RemoteControlUI
UnrealEditor_RemoteControlUI
UnrealEditor_RemoteControlUI
UnrealEditor_RemoteControlUI
UnrealEditor_Slate
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UnrealEditor_SlateCore
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UnrealEditor_SlateCore
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UnrealEditor_SlateCore
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UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
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UnrealEditor_ApplicationCore
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UnrealEditor_ApplicationCore
user32
user32
user32
ntdll
win32u
UnrealEditor_Slate
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UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
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UnrealEditor_UnrealEd
UnrealEditor_DisplayClusterEditor
UnrealEditor
UnrealEditor
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kernel32
ntdll

2

Not enough information, but this is almost always a situation where someone tries to access a null pointer

3

Thank you Roy for responding. I am not sure what is null pointer!

But to throw more light on the issue, I am just trying to render sequence from MRQ with Lumen in UE5.1 . The scene is MW Broadleaf Tree Forest Biome.

When I use legacy MRQ I am able to render pro res video but the entire foliage (grass and plants only) disappear in the video

When I use MRQ with cut scene and with all options like “In the MRQ setting disable Force LOD0 on Game Overrides.” the engine just crashes with above error mentioned in the headline…

Hope now its bit clear!

4

From the part of the log in your first message I can not see what the actual error is or where it is caused. Does it show a .cpp file, method + line reference? Does it show what it tried to access? A pointer is c++ code pointing at data somewhere in the memory. When you try to use a pointer pointing at nothing, this error will pop up. You should update the section of your question from Feedback to Programming / c++ so it reaches programmers. I am not familiar with the exact setup you are experiencing the issue with but it sounds like a bug in one of them.

1 Like
5

My bad… I completely missed out on reading the MAWI document (MAWI United GmbH).
They have clearly mentioned that there are lot of bugs and UE5 crashes