Users may be unable to play migrated Stream videos in Microsoft Stream

Title: Users may be unable to play migrated Stream videos in Microsoft Stream

User impact: Users may be unable to play migrated Stream videos in Microsoft Stream.

More info: Users attempting to play impacted Stream videos will encounter the error message: “This browser or app can’t play the video. Something might be outdated or not supported. Try again using a different browser or app.”

Current status: The fix is running and in the process of saturating all of the impacted environments. In some cases, we have been able to begin the secondary file repair step earlier than anticipated. For those customers, the impacted video files are now restored and playable. We are looking into accelerating the repair process more broadly. If this is successful at scale, we’ll provide an updated timeline at our next scheduled communication. Otherwise, we remain on track to meet the previously stated mitigation date of Friday, March 15, with most files being restored well before then.

Scope of impact: Any user may be unable to play migrated Stream videos in Microsoft Stream.

Start time: Saturday, February 10, 2024, at 2:00 AM UTC

Preliminary root cause: A recent feature update, intended to enhance the reliability and stability of our service, contained a code regression that prevented migrated Stream videos from playing as expected during the outlined window of impact.

Next update by: Friday, March 8, 2024, at 11:30 PM UTC