After much expense, experimentation and frustration, I am selling my Cubex Trio and buying a cheaper kit 3D printer that is compatible with a wider range of programs.
In my personal opinion, the Cubex printers are too expensive for what trouble they present; esp, the high cost of proprietary filament cartridges and inability to use Cura to run it (again, proprietary slicer format [.curex] that seems to be unique, glitchy and encrypted so you can't edit it). Finally, I can't find anyone who will work out a fix for these issues.
Ergo: my love affair with the Cubex printers is quite over.