I'm having the same problem with Cubase 10 pro on the main computer and Vepro audio on a slave running Waves GTR and Bias amp/FX sims. My other slave runs Vpro 7 with synchron orchestral instruments and Kontakt. That one has no problems. I'm surprised that the original post was put up a year ago and no replies or help.
I'm hoping that Hodshonf has figured out a solution!
I'm running Windows 10 Pro optimized for audio on all 3 computers and they're networked via cat 6 and a network switch.