Build failing with Blueprint nativization Enabled

Hey everyone,

Apparently I’m unable to enable blueprint nativization as it causes my build to fail with the following errors.
I’m wondering if it has anything to do with plugins I have enabled?

UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: begin: stack for UAT
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: === Critical error: ===
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: Assertion failed: InClass [File:D:\Build\++UE4+Release-4.18+Compile\Sync\Engine\Source\Developer\BlueprintCompilerCppBackend\Private\BlueprintCompilerCppBackendGatherDependencies.cpp] [Line: 485]
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000A65F4008 KERNELBASE.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x000000008D9276D4 UE4Editor-ApplicationCore.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000709D330B UE4Editor-Core.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000709647F9 UE4Editor-Core.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x0000000065F70754 UE4Editor-BlueprintCompilerCppBackend.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x0000000065F51C16 UE4Editor-BlueprintCompilerCppBackend.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x0000000065F32F28 UE4Editor-BlueprintCompilerCppBackend.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x0000000065F67BD3 UE4Editor-BlueprintCompilerCppBackend.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x0000000067CBC595 UE4Editor-KismetCompiler.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x0000000066ADD94B UE4Editor-BlueprintNativeCodeGen.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x0000000066AE1285 UE4Editor-BlueprintNativeCodeGen.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x0000000066ADE228 UE4Editor-BlueprintNativeCodeGen.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x000000006BD37807 UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x000000006BD9E810 UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x000000006BC37D61 UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x000000006BC5F391 UE4Editor-UnrealEd.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000E221D25F UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000E221525A UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000E22154AA UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000E2222379 UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000E2223193 UE4Editor-Cmd.exe!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000A7421FE4 KERNEL32.DLL!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000A988EFC1 ntdll.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: [Callstack] 0x00000000A988EFC1 ntdll.dll!UnknownFunction []
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error:
UATHelper: Packaging (Windows (64-bit)):   LogWindows: Error: end: stack for UAT
UATHelper: Packaging (Windows (64-bit)): Took 146.785174s to run UE4Editor-Cmd.exe, ExitCode=3
UATHelper: Packaging (Windows (64-bit)): Cook failed. Deleting cooked data.
UATHelper: Packaging (Windows (64-bit)): ERROR: Cook failed.
UATHelper: Packaging (Windows (64-bit)):        (see C:\Users\me\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.18\UAT_Log.txt for full exception trace)
UATHelper: Packaging (Windows (64-bit)): AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure)
UATHelper: Packaging (Windows (64-bit)): BUILD FAILED
PackagingResults: Error: Unknown Cook Failure

Full UAT log: