Lightmass is crashing when using a material that has "Cast Shadow as Masked" set to true in its properties.
Found in 4.18 P3 CL#3676890
Unable to reproduce in 4.16.3 CL# 3561208 and 4.17.2 CL#3658906, this is a regression.
result: lightmass crashes
expected: lighting built successfully
<None> === Lightmass crashed: ===Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000002 Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000002 0x000000001E8FD340 UnrealLightmass-Core.dll!UnknownFunction [] 0x0000000047014E6C UnrealLightmass.exe!UnknownFunction [] 0x0000000047013BA8 UnrealLightmass.exe!UnknownFunction [] 0x000000001F4F6FAC embree.dll!UnknownFunction [] 0x000000001EF38AD0 embree.dll!UnknownFunction [] 0x00000000470294E4 UnrealLightmass.exe!UnknownFunction [] 0x000000004707BEBF UnrealLightmass.exe!UnknownFunction [] 0x000000004707B892 UnrealLightmass.exe!UnknownFunction [] 0x000000004709D158 UnrealLightmass.exe!UnknownFunction [] 0x000000001EB86AEC UnrealLightmass-Core.dll!UnknownFunction [] 0x000000001EB776B3 UnrealLightmass-Core.dll!UnknownFunction [] 0x00000000314413D2 KERNEL32.DLL!UnknownFunction [] 0x00000000335D54E4 ntdll.dll!UnknownFunction [] 0x00000000335D54E4 ntdll.dll!UnknownFunction []
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Head over to the existing Questions & Answers thread and let us know what's up.
| 4 |
| Component | UE - Graphics Features |
|---|---|
| Affects Versions | 4.18 |
| Target Fix | 4.18 |
| Created | Oct 4, 2017 |
|---|---|
| Resolved | Oct 5, 2017 |
| Updated | Apr 27, 2018 |