That's normal. You just have to yaz0 compress it.
The reason it crashes the editor, is because you save it and it isn't a yaz0, it reloads, but it doesn't see that it's not a yaz0 and crashes. Just compress it, open it again, and choose the area.
The reason it crashes the editor, is because you save it and it isn't a yaz0, it reloads, but it doesn't see that it's not a yaz0 and crashes. Just compress it, open it again, and choose the area.