Xfinity app and beta stream for roku

Local channels and local channels in HD have simply disappeared who knows how many more. Not in list menu or search option. It’s happened on both beta stream for Roku as well as xfinity app in any device I have I do have those channels in my package and do watch them from my cable box. It’s taken me 3 unsuccessful calls of endless troubleshooting. Last call got escalated 4 times and after 1.5 hrs they still needed to escalate and investigate more so they said a call back in 48-72 hours. Nice people but xfinity technicians have very little knowledge. They were focused on my package preference and my mobile device details when I kept stating the issue is app or my profile because the missing channels happen regardless the app I use and device I use. Even worse knowledge when I read app reviews with latest update done to the app and then find this forum which describes same issues by different users experiencing this over 1 year ago. Does that mean xfinity have a level of incompetence but remain with high prices? How come they continue to do app updates and more and more customers are increasing the same issue over time? How come if these comments on the blog have been reported over a year ago and when you call xfinity fro troubleshooting they have no idea of this? Like if it was the first time this is being reported. Crazy one day you have the channels on app, next day disappears. No one knows, no explanation. No fix.