Black second Screen on Mac 10.14 beta
 

I am using a Displaylink Plugable USB-C docking station with Dual Dell monitors on my Mac Pro 13. I have been trying to get my second screen up and running since the 10.13.6 update. I have tried all the updated firmware with no success and now with the new beta OS still not luck. I am also unable to get the airplay option to work. I am now stuck in a bad way and no second screen. Displaylink agent is active under Security & Privacy. I uninstalled and reinstalled v4.3 beta5 numerous times, restarted my dock, restarted my mac many times all producing the same result a black second screen. Looking for any help out there. Please and Thanks.