I had a "bad" day in X1 yesterday.
Wasn't using melodyne.
Simple project, TTS-1 and EZDrummer on the midi.
Tracking guitars (Amplitude, freezing as I went) and vocals.
Couple of "white" screens.
The last one when changing the "dim" level in ARC2, lost about 15 minutes of "mix" work.
My fault (that's why I have the `key setup to save, one keystroke; ctrl+s so last decade) not Sonar's, not a biggie.
Its not the full moon.
You don't have X2 installed?
I find X2 a little more "problematic" than X1.
I was trying to "work fast" that's why I was running X1, I see the occasional "white out" in X2, I thought, more frequently that X1.
I feel your pain...
Tom