Same as above: while restarting after my first run was fine, trying to do it after my cube boss run death had the game screen fade back in for a second, only to fade back to black and lock.
Saw the strange debug for the jumping down hole as well.
Game started with music at 0% by default.
Having a lot of instances where a seemingly open floor space will suddenly be blocked off, stopping me from moving into it. Usually happens in the heat of battle when I and enemies are moving around: probably a case of an enemy being in the space but leaving it, only the space is still treated as if something is still in it? It's not a turn-based game so I imagine there might be a lot of competition for spaces. The floor space will actually not have a movement targetter on it, so it's recognized as an immovable space, but it's free and open so there's no reason for it to be immovable suddenly when it wasn't previously.