Weird graphical glitches over drawn areas?

Hi all, this is Fresco for Windows 10 through the CC app. Used it all the time this past year on my i7 Surface Book 2 (Nvidia GPU, 32gbs ram..) and its worked just fine. Now, when panning, drawing, changing visable layers, these weird rainbow graphical glitches appear on any area with pixels drawn. Ive uninstalled and reinstalled the program to no avail. Help!
