I have found out that all sort details keep reverting to something I have done before.  For instance international postage, which I do not want to offer on several things I have listed in this moment, but every time I went to revise, it also changed to offer international post.  And item location has done that to me few time too.  Just to make sure I put in my TOS in payment options ...... and cash payment on pick up from X is also welcome.  That way should the gremlins do something to the item location I at least have that in there.