I have a first generation Echo Plus. It responds to my smart home devices (lights on/off), and shares the weather, plays music, etc. However, it will not play my Flash Briefing or add to any of my lists. When I ask her to add something to my list, she says, "Hmmm, I'm unable to do that." When I ask her to play my Flash Briefing, she says, "That's not something I can do." I have reset the device a few times, I have unplugged it, I have searched online to see if a setting has changed...nothing seems to work. My Echo Dot has no issues with these features, it's just the Echo Plus. Any suggestions as to how to fix would be appreciated!