I have had a Seagate 3TB external for several months. Recently I noticed that the Xbox one is not installing it to by default anymore. Also if I go into the external storage and attempt to manage the games installed on the hard drive they do not give the option to delete, move or anything other than local saved data. I am also unable to move games, now installing onto the system HD, to the external. I am however able to play the games from the external HD though. Anyone else seen this? I am hoping I don't need do a reformat, 1.5 TB in and I am not on the speediest connection. Any help is appreciated.