Setting external monitor as primary shifts Zenbook Duo ScreenPad+ above main display, cannot change

[Steve123]

System: Zenbook Duo
Battery or AC: Both
Model: UX481FLY
Frequency of occurrence: Every time
Reset OS: Brand new unit
Screenshot or video: Below
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Detailed description: I have a dual monitor set-up. If I try to position either of the external monitors (top left or right) as my primary display, Windows shifts the ScreenPad+ above the main laptop display (see screenshot). I have tried every possible configuration and this cannot be changed.
External monitors are plugged in via a USB 3.0 Plugable dock, HDMI and DVI.
What is going on? This is unacceptable considering my workflow.

[Steve123]

You really don't think I tried dragging monitor 2 back below 1, seriously?
You have tried, so you have a Zenbook Duo connected to 2 external displays as well? I've updated all DisplayLink drivers, I've done every single troubleshooting step I can think of.

[Steve123]

Blake, this is starting to get quite irritating, not the best customer service for my first Asus experience...

[Steve123]

Guess you guys don't actually care about your customers?

[Steve123]

It's almost been another month. Can you please provide me some help?