EPixelFormat::PF_R16_SINT does not render correctly for textures

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bool Atexture_test_actor::LoadRawFileTest(
/* output */ UTexture2D*& image) {

TArray<short> values;
values.SetNum(512 * 512);
for (int y = 0; y < 512; ++y) {
const short value = (short)FMath::Clamp((int)(((float)65535 / 511) * y - 32768), -32768, 32767); // -32768 to 32767
for (int x = 0; x < 512; ++x) {
values[y * 512 + x] = value;
}
}

// For Check
for (int y = 0; y < 512; ++y) {
UE_LOG(LogTemp, Warning, TEXT("%d"), values[y * 512]);
}

image = UTexture2D::CreateTransient(512, 512, /*EPixelFormat::PF_G16*/ EPixelFormat::PF_R16_SINT);
image->CompressionSettings = TextureCompressionSettings::TC_Grayscale;
image->Filter = TextureFilter::TF_Bilinear;
image->SRGB = false;
image->AddToRoot();

#if WITH_EDITOR
image->MipGenSettings = TextureMipGenSettings::TMGS_NoMipmaps;
image->CompressionNone = true;
#endif

void* locked_bulk_data = image->PlatformData->Mips[0].BulkData.Lock(LOCK_READ_WRITE);
FMemory::Memcpy(locked_bulk_data, values.GetData(), sizeof(short) * 512*512);
image->PlatformData->Mips[0].BulkData.Unlock();

image->UpdateResource();

return true;
}
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