Post update to 1.4.4, my screen blanked out, leaving only a weird light gray blob on darker gray background, with what seemed sort of similar to display burn-in showing ghost images of the “next print” screen.
I panicked for a bit, then remembered that LCD burn in can’t occur that quickly.
Then panicked again, because the discolored blob looked somewhat similar to a delaminating backlight diffusor film.
Then checked if there was some kind of leak or something inside the machine (but nope).
Then remembered that odd voltage spikes and brownouts can sometimes produce temporary odd effects like that on LCDs and rebooted the machine.
Then panicked again because that didn’t do anything. Then calmed down, unplugged everything for a few minutes to guarantee everything gets discharged completely, turned it on again, and voila - no more weirdness.
Guessing something in the update did something weird to the display, the display controller, or both. So, if you experience something similar - heads up, just calm down, unplug the machine, wait for a few minutes, and plug back in.