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 Something might be outdated or supported. Try again using a different browser or app.”

Current status: While we were in the process of identifying a comprehensive list of affected video files to repair, we confirmed that the window of impact spanned from Saturday, February 10, 2024, at 2:00 AM UTC to Saturday, February 17, 2024, at 5:00 AM UTC, and that video files migrated after this time aren’t affected. We’re continuing to develop a remediation strategy to repair previously affected video files and, after internal testing proves its efficacy, we’ll aim to provide an estimated time to full resolution.

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: Monday, February 26, 2024, at 11:30 PM UTC