Noticed this with the latest beta and at least one before. After letting a buffer build up for a bit on live TV, if I try to fast forward through ads with the 30 second jump feature, eventually the stream will lose its place and "jump" back to the beginning of the buffer and no longer show the program info. I'll attach a photo. I can then use the scrubber and chose the place I left off and things return to normal but if I'm not paying attention when using the 30 second jump feature, its a pain to find where I left off.
I've submitted diagnostic logs with category Video Player