I was in the middle of watching mad men, which is why I got AMC+ on the Roku channel, but it disappeared from my view history and it's not showing it's available. Only available through the AMC+ app. So I tried to sign up for that, but it won't let me with an active subscription to it through Roku. I cancelled it, but it still won't let me use the AMC+ app. Horrible experience. Is there anything I can do?