Silly question but are Quadro cards supported? P4000?
Fresh install using the auto script on 4.22.3
<None> === Lightmass crashed: ===
Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:c:\ue4-gpulightmassintegration\engine\source\runtime\core\public\Containers/Array.h] [Line: 611]
Array index out of bounds: 5870641 from an array of size 5870641
0x00007fffb5e3a839 KERNELBASE.dll!UnknownFunction ]
0x00007fff0fe4ed47 UnrealLightmass-Core.dll!UnknownFunction ]
0x00007fff0fe516d7 UnrealLightmass-Core.dll!UnknownFunction ]
0x00007fff0fce234a UnrealLightmass-Core.dll!UnknownFunction ]
0x00007fff0fc6d699 UnrealLightmass-Core.dll!UnknownFunction ]
0x00007fff0fc6dde9 UnrealLightmass-Core.dll!UnknownFunction ]
0x00007ff61a1b6528 UnrealLightmass.exe!UnknownFunction ]
0x00007ff61a138b70 UnrealLightmass.exe!UnknownFunction ]
0x00007ff61a13905a UnrealLightmass.exe!UnknownFunction ]
0x00007ff61a0fb39b UnrealLightmass.exe!UnknownFunction ]
0x00007ff61a12374a UnrealLightmass.exe!UnknownFunction ]
0x00007ff61a146dd9 UnrealLightmass.exe!UnknownFunction ]
0x00007ff61a0fbb64 UnrealLightmass.exe!UnknownFunction ]
0x00007ff61a11f36d UnrealLightmass.exe!UnknownFunction ]
0x00007ff61a13e4da UnrealLightmass.exe!UnknownFunction ]
0x00007ff61a1b1bb8 UnrealLightmass.exe!UnknownFunction ]
0x00007fffb7297bd4 KERNEL32.DLL!UnknownFunction ]
0x00007fffb8b8ce71 ntdll.dll!UnknownFunction ]
Edit: For some reason it doesn’t work on particular existing projects.
It’ll build on a default level though