No, other data bugs can delete/corupt the fields and dungeons. In the games, when you go to a corupted field, there's patches of data missing, from the field, dungeon, ect. (the oddly colored patches that have 1's and 0's)
Yeah it's truth... Then it's a normal DataBug ^^! I was a littlel stupid thinking that's a phase... but it has a rare body like a phase... It doesn't seem any monster that I saw... XD
XD