Hello John, thanks for posting and we’ll be happy to help!
Thanks for the description of the issue you are seeing and providing the brand and model of system you are using. Unfortunately, our UD-CA1A dock is not compatible with this Asus system. In looking at the speecifications here: https://www.asus.com/Laptops/ASUS-ZenBook-15-UX534FTC/specifications/ it seems that Asus mentions the USB-C 3.1 Gen 2 port is used for data transfer only. Below is a screen grab from the specifications page:
In order for our UD-CA1A dock to work the system must also support DisplayPort video output and USB-C Power delivery.
I apologize that our dock will not be able to work with this system, but we do offer a 30-day no hassle return policy on Amazon.com/returns as we certainly do not want you to be stuck with a product that will not work as desired with your system.