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 Something might be outdated or not supported.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 repair job has restored functionality to the majority of impacted Microsoft Stream video files. We anticipate that it will take at least another full day to find and repair all the remaining files, though we estimate that these files make up a very small fraction of the original impact. We will continue to monitor progress and anticipate full resolution by our next scheduled update.

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 impacted Stream video files that were migrated between Saturday, February 10, 2024, at 2:00 AM UTC, and Tuesday,
February 20, 2024, at 9:30 AM UTC, causing them to be unable to play.

Next update by: Wednesday, April 10, 2024, at 10:00 PM UTC