Users' Outlook for iOS app version 5.2602.0 may crash or freeze on iPad devices
ID: EX1220516
Issue type: Incident
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Status
Service Degradation
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Impacted services
Exchange Online
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Details
Title: Users' Outlook for iOS app version 5.2602.0 may crash or freeze on iPad devices
User impact: Users' Outlook for iOS app version 5.2602.0 may crash or freeze on iPad devices.
More info: Affected users can launch Outlook mobile while in Airplane Mode and then re-enable Wi-Fi and/or cellular data as a way to circumvent impact while we work towards mitigation.
Current status: We determined that the latest Outlook for iOS update contains a code error related to a change meant to refresh rather than restart tabs when feature flags are updated, which is resulting in this impact. We’ve developed a code solution for the next update to address this issue, which we intend to roll out to iOS tomorrow. We’ll provide further updates on this timeline as soon as they become available.
Scope of impact: This issue may affect all users' iPad devices using Outlook for iOS version 5.2602.0. This information may be updated as our investigation continues.
Start time: Tuesday, January 20, 2026, at 11:00 PM UTC
Root cause: The latest Outlook for iOS update contains a code error related to a change meant to refresh rather than restart tabs when feature flags are updated, which is resulting in this impact.
Next update by: Thursday, January 22, 2026, at 8:00 PM UTC
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