Since I just updated my firmware, the green button no longer appears on the screen. The others are there, but I have no way to sort files.
Are you sure it’s the result of a firmware update?
Do you perhaps have a UPnP or DLNA server selected as content source?
If you have, the green button won’t show up, and you have to use the selection menu the server provides.
That was double posted. Its all been sorted now.