This happens often and with different videos, I try to reach. Most recently with "Winter Wars" after pressing the PLAY button.
Similar posts exist in community history but are not similar to my example.
Since you mention PC and browser, is this when trying to view on therokuchannel.com?
Yes, this happens when using therokuchannel.com in my PC's Chrome browser, where I save my choices to SAVE LIST to watch on my Smart TV.