Last episode of Blue Bloods for example. Near the end of the show, Selleck walks into the room. On a web browser, you see him walk into the room to the table after opening a door. In the Hulu channel app, after he opens the door, there is an audio drop and the video jump a few seconds ahead and then the audio comes back but is now out of sync.
This is occurred using Hulu with live TV on a recorded show via Hulu. The issue does not occur on all recorded shows.
Hulu has been contacted and they are escalating the issue after doing additional attempts to correct the issue which included unlinking the Roku devices from the Hulu account.