Are you moving the actual Group (folder icon) or a layer in the Group? You can move the entire Group and they will move together, or you can link the individual layers together and move them.
I am moving the entire folder. I opened the file in 5.5 and it moved perfectly. I think my copy of Photoshop CC 2017 is faulty.
I just upgraded to cc2017, There is a large option in the upper-left labled AUTO SELECT.
Turn that off, it will let you move entire groups.
I was about to get a hernia trying to edit an 80 layer group.
You can also click the drop-down menu at the top left and select "group".
Thank you so much! I was going crazy
thank you, this fixed my issue
Thanks for that simple reply which solved my headache !