I am having trouble with my lightingbuild data for only one of my levels.
I can build lighting fine, however when I close the editor, or change to a different map and back, the editor crashes. I checked the logs and when the engine first crashes this line appears
Fatal error: [File:D:\Build++UE4+Release-4.15+Compile\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp] [Line: 3498]
LogWindows:Error: MapBuildDataRegistry /Game/Maps/FulhamReachApartment_BuiltData.FulhamReachApartment_BuiltData: Serial size mismatch: Got -1694559444, Expected -1694559444
I can delete the BuildData and open the map and rebuild the lighting again however the same thing happens. If i replace the lighting build with an autosave or a copy of the Build Data before the crash I get this error:
Attempted to seek to a negative location (-1694542075/2652971352), file: …/…/…/…/…/…/Users/Paul/Desktop/Fulham Reach VR/UE/FulhamReachVR/Content/Maps/FulhamReachApartment_BuiltData.uasset. The file is most likely corrupt.
This does not happen on any other levels in the project and I have run out of options which I can think of.
Any help or route suggestions would be appreciated, I will be posting this question on UDN also.