The docking station you have attached is not Plugable’s product. It seem it is the following from a company called ‘RayCue’ https://www.amazon.co.jp/dp/B074FWNSW8
Please contact to the Amazon seller about the above docking station from Amazon’s “Your Order” page.
If you are looking for an USB Type-C docking station that can work with HP Spectre x360, a few of our customers have reported that our Plugable’s UD-CA1A docking station worked fine. https://plugable.com/products/ud-ca1a/