Apple TV with LG TV. A function I loved has stopped working. TV on HDMI 1, Apple TV on HDMI 3. If I was watching TV (HDMI 1) and double clicked the TV icon on the remote the TV would switch to Apple TV+ (which I had set as main screen). All of sudden double clicking on the remote TV icon doesn't switch from (HDMI1 to 3). Software up to date on TV, and Apple TV device. Any suggestions for a very non tech savvy person appreciated. Thanks.