PVS-Studio warning V510 for UnrealEngine4

const FSlateBrush* FSlateGameResources::GetBrush(
  const FName PropertyName, ....)
{
  ....
  ensureMsgf(BrushAsset, TEXT("Could not find resource '%s'"),
             PropertyName);
  ....
}

This suspicious code was found in UnrealEngine4 project by PVS-Studio static code analyzer.
Warning message is:
V510 The 'EnsureNotFalseFormatted' function is not expected to receive class-type variable as sixth actual argument. slategameresources.cpp 49

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