Sentry incident: Alert backlogs in US

Affected components

• Alerting - US Errors Alerting
• Alerting - US Spans Alerting
• Alerting - US Transactions Alerting

1. resolvedAug 18, 2026, 22:21 UTC

   The problem has been resolved, all backlogs have cleared and everything is operational again.

2. monitoringAug 18, 2026, 22:15 UTC

   We have implemented a fix and the systems are recovering. We are monitoring to ensure that backlogs are proessed.

3. identifiedAug 18, 2026, 21:56 UTC

   We have identified the cause and are working to determine a mitigation. This is only affecting US right now.

4. investigatingAug 18, 2026, 21:42 UTC

   We are currently investigating a delay in evaluating alerts in the US region.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Sentry's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Elasticsearch: Elasticsearch 9.5.1: false-positive matches in certain boolean queriesMajor · Aug 14, 2026, 09:22 UTC
• Supabase: 401 errors due to JWT rejectionsMinor · Aug 14, 2026, 02:23 UTC
• Telnyx: Programmable Wireless data loss in AustraliaMinor · Aug 17, 2026, 19:27 UTC
• Expo: iOS Submissions hanging on App Store Connect build uploadsMinor · Aug 18, 2026, 16:25 UTC
• Cursor: GitHub-connected Cloud Agent workflows degradedMinor · Aug 18, 2026, 19:47 UTC
• Resend: Contact webhook events are delayed in deliveryMinor · Aug 18, 2026, 19:53 UTC

How often does Sentry have incidents?

Sentry reported 25 incidents in the last 90 days, 15 of them major or critical. A typical incident lasted 3h. See Sentry's uptime and incident history