The first one is that every time I start the game, the music volume resets to 50 instead of remaining at the default 100. I have to change it back every single time, which is annoying.

The second one is a little more serious. After activating the windmill on the wasteland, every time I enter the wasteland after starting the game the sound of the windmill activating plays (whether is through the teddy bear to the Temple of Life or simply through the path of shadows), which can make the game crash. The weird thing is that it doesn't happen after doing it once, only after I exit to desktop and start the game again. I tried doing things in a different order to see if I could avoid this bug, but I was unsuccessful. Any idea how I can avoid it? Maybe a way to get the Dark Soul without activating the windmill?

EDIT: Well, I managed to get to the Dark Soul without activating the windmill. It was surprisingly easy too, just jumping from the piece of land close to the platform. However, the game crashed when I tried to collect the Dark Soul. So you HAVE to activate the windmill no matter what, since the game apparently checks if you did...