Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Assets
Summary
All of my Niagara systems that use mesh emitters are either throwing this error and crashing verse or simply will not load.
[2024.04.03-07.39.01:325][334]LogEditCondition: Error: NiagaraMeshRendererMeshProperties - EditCondition attempted to use an invalid operand "LODMode" (value error).
[2024.04.03-07.41.10:156][ 10]LogOutputDevice: Warning: Script Stack (0 frames) :
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: === Handled ensure: ===
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: Ensure condition failed: Parent.IsValid() [File:D:\build\++Fortnite\Sync\Engine\Plugins\Experimental\ControlFlows\Source\ControlFlows\Private\ControlFlowNode.cpp] [Line: 29]
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: Stack:
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff780331c9c UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff78f3f2329 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff78f2e9a12 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff78f2e2760 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff783e01e58 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff783e01bc8 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff783dfc53b UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff783e006dc UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff783e06b63 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff783dfabf1 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff783e061e0 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77e92faf0 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77fadfdbe UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77e9890f1 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77e966a69 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77e95c1ab UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff774618dbc UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77e67dc30 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff78f316ca0 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff78f309223 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77f112c26 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff78f31bff4 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77bf7698f UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77bf742d8 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77c8542a6 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff78b3d9132 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77fa23fdb UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77fa2d42c UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77fa2d4ba UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77fa2e500 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff77fa39b74 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007ff7955b9ce2 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007fff714f7344 KERNEL32.DLL!UnknownFunction []
[2024.04.03-07.41.10:157][ 10]LogOutputDevice: Error: [Callstack] 0x00007fff728c26b1 ntdll.dll!UnknownFunction []
Steps to Reproduce
Have an existing map with Niagara systems using Mesh renders and try to use one
Expected Result
It would load normally
Observed Result
Either will not load the vfx, or it will crash the game.
Platform(s)
Windows/PC
Additional Notes
Note that I am observing this in every single Niagara system that uses a mesh emitter. Likely has to do with the new section in meshes: no default mesh parameter binding, default to LOD level, or something related to whatever has been pushed here.
