I think the main reason is that there is no problem with the extensions, because I have no such problem after all the extensions are installed; Then, bring your own things may be too big, especially in a house that specializes in all courses. When the number of self-contained items is too large at once, M2 will react easily, so it is best to put it in bit by bit. This game just tests the patience of players. Hey ~ ~ ~ I reinstalled it many times. Sometimes I really don't want to be bored, but I can't help but want to play and feel sad.