Stream app only showing purchases on both Roku and Samsung smart tv

I have two cable boxes and two Roku sticks, all of which have worked perfectly for several months.  I have not changed anything at all.  Today, I turned on the tv in our guest room, which has one of the Roku sticks and it asked me to “authorize” my Roku.  I haven’t used the tv in a month or so.  After authorizing the Roku, it only shows two purchased movies, one from 2014 and one from 2017.  There is no live content available.  I deleted the app, rebooted the Roku, and reinstalled the app and have the same problem.  I called Xfinity and they can’t see any issue with my account.  The tech said he would investigate and call me back.  I then went to my master bedroom, where we were watching tv on the app earlier today with no problem.  It now also only shows those same two movies — no live content.  I tried installing the streaming app on my Samsung smart tv and when I authorized that, it also only shows the two purchased movies.  It’s been a couple hours and so far the tech has not called me back, so I thought I’d ask for help here.  Thanks!