So... after the 21-12-16 update, quite a few slots have been locked, which they arent on the 6-12-16 version. These locks literally came out of nowhere, and I have no idea how to remove them. All of them are legal, so I have no idea what caused it.
As example, my Box 16 in the 6-12-16 version (left) and in the 21-12-16 version (right)
Does anyone have a solution? other than using an older version, which I'm gonna have to be doing for now