USB-C Pass-through

I ordered a monoprice usb-c passthrough and displayport adapter https://www.monoprice.com/product?c_id= ... 1&format=2 but it doesn't power the Alpha using the included power supply. The red light never turns on with the power supply plugged into the passthrough but will turn on when plugged directly into the Alpha. Has anyone had luck using the included power supply and a USB-C pass through adapter with the Alpha 864? If so, can someone link to the one they purchased?