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Getting a texture buffer have size 0

Trying to load a texture data, but always get GetBulkDataSize equal to 0

Here is my code

 auto &CubeMaskMipMap = CubemapMask->PlatformData->Mips[0];
 const void *CubeMaskRawImageData = CubeMaskMipMap.BulkData.LockReadOnly();
 int CubeMaskSize = CubeMaskMipMap.BulkData.GetBulkDataSize();
 int CubeMaskItemSize = CubeMaskMipMap.BulkData.GetElementSize();

Calling this code from PostInitializeComponents() or BeginPlay() does not matter. Calling CubeMaskMipMap.BulkData.ForceBulkDataResident(); does not produce any results either.

How can I get texture data? Any texture setting i am missing?

Product Version: UE 4.9
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asked Oct 16 '15 at 01:44 PM in C++ Programming

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