Microsoft Teams desktop client launch failure resolved after update rollback
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Microsoft reverted a service update for Microsoft Teams desktop clients after it caused widespread launch failures. Affected users experienced a loading screen hang and an error stating: "We're having trouble loading your message. Try refreshing." The issue stemmed from a regression in the Teams client build caching system that pushed older client builds into an unhealthy state. This impacted Teams users globally, though the exact scope (user count or regions) was not disclosed. Microsoft confirmed the automated recovery system remediated the issue before reverting the update, requiring impacted users to fully quit and restart the Teams client to apply the fix.
Timeline
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20.04.2026 12:40 1 articles · 1h ago
Microsoft Teams desktop client launch failures resolved via service update rollback
Microsoft reverted a service update causing Teams desktop client launch failures due to a regression in the client build caching system. Affected users experienced infinite loading screens and errors. The automated recovery system remediated the issue before rollback, but users must fully quit and restart Teams for the fix to propagate. The incident, tracked as TM1283300, was flagged as critical.
Show sources
- Microsoft pulls service update causing Teams launch failures — www.bleepingcomputer.com — 20.04.2026 12:40
Information Snippets
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The Teams desktop client launch failures were triggered by a regression in the client build caching system introduced via a service update.
First reported: 20.04.2026 12:401 source, 1 articleShow sources
- Microsoft pulls service update causing Teams launch failures — www.bleepingcomputer.com — 20.04.2026 12:40
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Affected users encountered an infinite loading screen and the error message "We're having trouble loading your message. Try refreshing."
First reported: 20.04.2026 12:401 source, 1 articleShow sources
- Microsoft pulls service update causing Teams launch failures — www.bleepingcomputer.com — 20.04.2026 12:40
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Microsoft confirmed the issue was automatically remediated before rolling back the update via their recovery system.
First reported: 20.04.2026 12:401 source, 1 articleShow sources
- Microsoft pulls service update causing Teams launch failures — www.bleepingcomputer.com — 20.04.2026 12:40
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Users must fully quit and restart the Teams desktop client for the fix to propagate after the update rollback.
First reported: 20.04.2026 12:401 source, 1 articleShow sources
- Microsoft pulls service update causing Teams launch failures — www.bleepingcomputer.com — 20.04.2026 12:40
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Microsoft did not disclose the number of affected users or specific regions impacted by the incident.
First reported: 20.04.2026 12:401 source, 1 articleShow sources
- Microsoft pulls service update causing Teams launch failures — www.bleepingcomputer.com — 20.04.2026 12:40
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The incident, tracked as TM1283300, was flagged as a critical service outage with noticeable user impact.
First reported: 20.04.2026 12:401 source, 1 articleShow sources
- Microsoft pulls service update causing Teams launch failures — www.bleepingcomputer.com — 20.04.2026 12:40