Index Buffer Creation fail about d3d12memoryallocator HOT 2 CLOSED

D3D12_HEAP_PROPERTIES props {};
props.Type = D3D12_HEAP_TYPE_UPLOAD;
props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
D3D12_RESOURCE_DESC desc{};
desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
desc.Width = size * sizeof(T);
desc.Height = 1;
desc.DepthOrArraySize = 1;
desc.MipLevels = 1;
desc.Format = DXGI_FORMAT_UNKNOWN;
desc.SampleDesc.Count = 1;
desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
desc.Flags = D3D12_RESOURCE_FLAG_NONE;

if (device->CreateCommittedResource(&props,
    D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, 
    NULL, IID_PPV_ARGS(&indexBuffer)) < 0)
    throw std::exception("index buffer creation failed!");

void* idxResource = nullptr;
D3D12_RANGE range{};
if(indexBuffer->Map(0, &range, &idxResource) != S_OK) 
    throw std::exception("index buffer maping failed!");

memcpy(idxResource, _data, desc.Width);

indexBuffer->Unmap(0, &range);

class BufferBase
{
protected:
	ID3D12Resource* mpVidMemBuffer;
	ID3D12Resource* mpSysMemBuffer;
public:
	void Initialize(ID3D12Device2* device, const void* data, uint size,
		ID3D12GraphicsCommandList* pCmd, D3D12_RESOURCE_STATES resourceState,
		D3D12_RESOURCE_FLAGS flags = D3D12_RESOURCE_FLAG_NONE) 
	{
		auto heapProperties = CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_DEFAULT);
		auto resourceDesc = CD3DX12_RESOURCE_DESC::Buffer(size, flags);
		ThrowIfFailed(device->CreateCommittedResource(
			&heapProperties,
			D3D12_HEAP_FLAG_NONE,
			&resourceDesc,
			resourceState,
			nullptr, IID_PPV_ARGS(&mpVidMemBuffer)
		));

		auto sysHeapProperties = CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD);

		ThrowIfFailed(device->CreateCommittedResource(
			&sysHeapProperties,
			D3D12_HEAP_FLAG_NONE,
			&resourceDesc,
			D3D12_RESOURCE_STATE_GENERIC_READ,
			nullptr, IID_PPV_ARGS(&mpSysMemBuffer)
		));

		// copy to sys
		void* mappedMem;
		D3D12_RANGE range;
		mpSysMemBuffer->Map(0, &range, &mappedMem);
		memcpy(mappedMem, data, size);
		mpSysMemBuffer->Unmap(0, &range);
	}
};