As the title says.
It seems that it happens when I enter a new place or when I encounter a boss, but I'm not 100% sure.
The game runs fine if I restart, but it's just really annoying and ruins the mood.

Keeps happening to me, too.

I know one was right as I was loading a new area, but another was when I was in the middle of fiddling around with functions, and I think the other two happened while I was just walking around. There might be a pattern I'm not seeing but....well, I'm not seeing it.