Yesterday I turned my 2021 Samsung frame TV on. It is hung in landscape mode and had been displaying that way since purchased two months ago. Yesterday the picture is now portrait and I can't find a manual, setting or online anything except advertisements saying that the NEW 2021 43" offers the capability to go from landscape to portrait mode. The online support people don't even know this (had to transfer me to an expert who never got on the chat)...so how did this happen? Where are the settings for this "great feature"? How do I get my TV back in landscape mode???