Audio does not sync properly in Xfinity Stream App using Firestick

My recorded programs using the Xfinity Stream app with my Firestick consistently does not have the audio synced with the video. I have to try to restart the Firestick multiple times a night to try getting this to work. Utterly unacceptable that there has been so many users with this same complaint and there is still no resolution. I never had this issue with YouTubeTV. If there is no resolution, I will have to look into switching back.