For the last few days, using the iOS apps I’ve had problems with videos popping up full-screen and autoplaying (with sound!) when I’m not even on the story that contains the video (I guess it happens while on the story before and after, as well as on the story that actually linked the video). This is reading stories in text view.
I believe videos this morning came from two feeds, https://newsblur.com/site/5526522/ (non-Twitter, the “Barenboim on 60 Minutes” story)) and https://newsblur.com/site/6337026/ (twitter, the MLK story). I don’t know if there’s a way to link to the particular story containing an embedded video, but hopefully you can find those posts.
If I access those stories via “Read Stories”, at least the videos only launch on the stories containing them, but I don’t want the videos going full-screen (with sound!) at all, and it takes a while for the video player to start up sometimes, so I could be a few stories away and suddenly the video from the story with the embedded video pops up when it finishes launching the video player.