Basically the control surface will crash so I can't push any faders or executer buttons, the programmer buttons do nothing but light up, the screens go to the Dot2 booting logo […]
Can confirm this behavior on 1.9 and before. Console locks up, Artnet seems to be transmitted still and the console window on the external screen just shows login notices. I did not check if the console is still accessible through the external screen/mouse/keyboard, though.
I may have a reproducible case when joining a session dot2 onPC session from the console.