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1. Create basic test scene
2. Create landscape layer
3. Enable Nanite on landscape layer
4. Run "Build Lighting Only"
5. Verify ensure is hit
Assertion failed: ExportSettings == *ExistingExportSettings [File:D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\Lightmass\Lightmass.cpp] [Line: 546] Attempting to add the same material twice with different export settings, this is not (currently) supported
UnrealEditor-UnrealEd!7ff91a620000 + 12a9854 UnrealEditor-UnrealEd!7ff91a620000 + 12b3439 UnrealEditor-UnrealEd!7ff91a620000 + 126bc72 UnrealEditor-UnrealEd!7ff91a620000 + 1294b82 UnrealEditor-UnrealEd!7ff91a620000 + 126c901 UnrealEditor-UnrealEd!7ff91a620000 + 79b6f6 UnrealEditor-UnrealEd!7ff91a620000 + 77c8e4 UnrealEditor-LevelEditor!FLevelEditorActionCallbacks::Build_Execute() [LevelEditorActions.cpp:758] UnrealEditor-LevelEditor!TBaseStaticDelegateInstance<void ,FDefaultDelegateUserPolicy>::ExecuteIfSafe() [DelegateInstancesImpl.h:777] UnrealEditor-Slate!7ff9219b0000 + aeb0 UnrealEditor-Slate!7ff9219b0000 + f411f UnrealEditor-Slate!7ff9219b0000 + 227d52 UnrealEditor-Slate!7ff9219b0000 + 22d690 UnrealEditor-Slate!7ff9219b0000 + 1f979a UnrealEditor-Slate!7ff9219b0000 + 29a5fa UnrealEditor-Slate!7ff9219b0000 + 29df65 UnrealEditor-Slate!7ff9219b0000 + 2bf3e8 UnrealEditor-Slate!7ff9219b0000 + 2300dc UnrealEditor-Slate!7ff9219b0000 + 13b5a UnrealEditor-Slate!7ff9219b0000 + 7e365 UnrealEditor-Slate!7ff9219b0000 + 6b562 UnrealEditor-Slate!7ff9219b0000 + 5e2fa UnrealEditor-ApplicationCore!FWindowsApplication::ProcessDeferredMessage(FDeferredWindowsMessage const &) [WindowsApplication.cpp:2231] UnrealEditor-ApplicationCore!FWindowsApplication::DeferMessage(TSharedPtr<FWindowsWindow,1> &,HWND__ *,unsigned int,unsigned __int64,__int64,int,int,unsigned int) [WindowsApplication.cpp:2738] UnrealEditor-ApplicationCore!FWindowsApplication::ProcessMessage(HWND__ *,unsigned int,unsigned __int64,__int64) [WindowsApplication.cpp:1099] UnrealEditor-ApplicationCore!FWindowsApplication::AppWndProc(HWND__ *,unsigned int,unsigned __int64,__int64) [WindowsApplication.cpp:937] USER32!7ff9f5f50000 + e7e8 USER32!7ff9f5f50000 + e229 UnrealEditor-ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages(bool) [WindowsPlatformApplicationMisc.cpp:148] UnrealEditor!7ff731600000 + 76f2 UnrealEditor!7ff731600000 + 2d28c UnrealEditor!7ff731600000 + 2d37a UnrealEditor!7ff731600000 + 30854 UnrealEditor!7ff731600000 + 46984 UnrealEditor!7ff731600000 + 49d7a KERNEL32!7ff9f6130000 + 17614 ntdll!7ff9f6f10000 + 526a1
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-195194 in the post.
| 1 |
| Component | UE - Graphics Features |
|---|---|
| Affects Versions | 5.3 |
| Target Fix | 5.5 |
| Fix Commit | 34029506 |
|---|
| Created | Sep 12, 2023 |
|---|---|
| Resolved | Jun 3, 2024 |
| Updated | Jun 19, 2024 |