When I try to order, I see the 16GB memory module is out of stock. When I click Next, I suddenly can pick the 16GB memory, however the Sata disk I selected in the first step is now unselected. When going back, I see USB-C Hub is not in the list anymore, even when I had selected it previously. When I go to Checkout, I see the USB-C Hub in the basket, but not the Sata disk and not the memory modules. Has anyone experience issues like these when ordering?