Some users may experience Office app crashes upon app launch or opening files on iOS devices.

Incident
May 11, 4:00pm ADT

Some users may experience Office app crashes upon app launch or opening files on iOS devices.

Status: Closed
Start: May 10, 11:25pm ADT
End: May 11, 4:00pm ADT
Duration: 16 hours 34 minutes
Affected Components:
Update

May 10, 11:25pm ADT

May 10, 11:25pm ADT

Title: Some users may experience Office app crashes upon app launch or opening files on iOS devices.
User Impact: Users may experience Office app crashes upon app launch or when opening files on iOS devices.
More info: Impact is limited to some users that have release 2.49 of iOS Office apps including Office Mobile, Word, Excel, and PowerPoint.
While we are focused on remediation, users may follow these steps to mitigate impact:
-Go to "System Settings" -Select the Office app that is experiencing the issue -Click on "Reset [name of selected app]" -Enable "Clear all [documents, workbooks, presentations]"
Current status: We've identified that a recent feature update containing a code regression was deployed resulting in impact. We have reverted the update, which should mitigate impact for the majority of users. While we are in the process of releasing version 2.49.1 of the apps to the iOS App Store to fully remediate impact, users can manually reset their Office app preferences to resolve the issue.
Scope of impact: Impact is specific to iOS Office apps that attempt to open documents that were still open during the last session. The apps will continue to do this, causing a crash loop.
Start time: Monday, May 10, 2021, at 4:00 AM UTC
Root cause: A recent feature update contained a code regression, which may cause Office app crashes on iOS devices when opening documents.
Next update by: Tuesday, May 11, 2021, at 6:00 PM UTC

Update

May 11, 1:33pm ADT

May 11, 1:33pm ADT

User impact: Users may experience Office app crashes upon app launch or when opening files on iOS devices.
More info: Impact is limited to some users that have release 2.49 of iOS Office apps including Office Mobile, Word, Excel, and PowerPoint.
While we are focused on remediation, users may follow these steps to mitigate impact:
-Go to "System Settings" -Select the Office app that is experiencing the issue -Click on "Reset [name of selected app]" -Enable "Clear all [documents, workbooks, presentations]"
Current status: We're continuing our efforts to expedite the release of version 2.49.1 of the apps to the iOS App Store for full remediation of the issue. Additionally, users can manually reset their Office app preferences as outlined in the More info section to mitigate impact.
Scope of impact: Impact is specific to iOS Office apps that attempt to open documents that were still open during the last session. The apps will continue to do this, causing a crash loop.
Start time: Monday, May 10, 2021, at 4:00 AM UTC
Root cause: A recent feature update contained a code regression, which may cause Office app crashes on iOS devices upon app launch or when opening documents.
Next update by: Tuesday, May 11, 2021, at 9:00 PM UTC

Resolved

May 11, 4:00pm ADT

May 11, 4:00pm ADT

Resolved

Resolved

May 11, 4:00pm ADT

May 11, 4:00pm ADT

Title: Some users may experience Office app crashes upon app launch or opening files on iOS devices
User Impact: Users may have experienced Office app crashes upon app launch or when opening files on iOS devices.
More info: Impact was limited to some users that had release 2.49 of iOS Office apps including Office Mobile, Word, Excel, and PowerPoint.
While we were focused on remediation, users may have followed these steps to mitigate impact:
-Go to "System Settings" -Select the Office app that was experiencing the issue -Click on "Reset [name of selected app]" -Enable "Clear all [documents, workbooks, presentations]".
Final status: We've deployed version 2.49.1 of the apps to the iOS App Store to remediate impact. Affected users without automatic updates can download the app update from the iOS App Store to remediate impact.
Scope of impact: Impact was specific to iOS Office apps that attempted to open documents that were still open during the last session. The apps were continuing to do this, causing a crash loop.
Start time: Monday, May 10, 2021, at 4:00 AM UTC
End time: Tuesday, May 11, 2021, at 7:00 PM UTC
Root cause: A recent feature update contained a code regression, which may have caused Office app crashes on iOS devices upon app launch or when opening documents.
Next steps: - We're reviewing our update procedures and the associated code regression to better identify similar issues during our development and testing cycles.
This is the final update for the event.