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 Something might be outdated or not supported.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: We’ve begun testing our automated repair in internal environments. While the repair has been successful in restoring impacted video files, we’ve identified a dependency affecting the display of video thumbnails. We’re developing some additional code to address this dependency within the mitigation deployment. Once the deployment has begun, we anticipate being able to provide an accurate timeline for complete remediation.

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: Thursday, February 29, 2024, at 12:30 AM UTC