When you start a new game from the title screen, the level in the viewport is completely black. In previous versions, the full level is drawn before melting.
This only happens from the title screen, and also ONLY on the first level load for that particular GZDoom play session. Screen melting while a level is currently in progress works fine. Subsequent level loads work fine (even if you went back to the title screen).
EDIT:
The melt is actually in-progress in the image but I couldn't capture it in a screenshot no matter what I tried. But that's exactly what's being rendered behind the melt as far as this glitch goes.
