Just performed the update on my Bloomberg app and a system update on my Roku 4k. I also now only have BTV+ with the datastream, and it continues to display the "No Valid Bitrate" error, if not more frequently than before.
Nothing has been fixed, and if anything - the live stream is now unusable.
Just a long-awaited follow-up, that for the last 6 weeks or so since updating my Roku 4k and the app to the latest firmware and release, I have only seen this occur very rarely. Most days I'm able to leave the app running during the entire day without issue.