If you view multiple BF video streams simultaneously you will probably have noticed a change in BF coding in the last week that means new streams no longer open in a new window, instead opening a new stream will replace an existing open stream. To open more than one stream at a time you now need to right click and open the new stream in a new window, and then manually adjust the window sizing to fit the relevant stream size.
I raised this issue with BF customer services last week which they said would be raised internally. Nobody got back to be so I followed-up again this week and have been informed that this coding change is deliberate and, unfortunately, is here to stay.
Please complain to BF CS if you find this change irritating.