# Astronomer: Intermittent task instances failures.

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-08-18 04:17 UTC · Resolved: 2026-08-18 07:36 UTC · Duration: 3.3 h
- Updates: 3 · Affected components: Scheduling and Running DAGs and Tasks, Scheduling and Running DAGs and Tasks
- [Vendor status page: https://status.astronomer.io/incidents/01M09HD09CG69RBJWCQ2ZHM4BP](https://status.astronomer.io/incidents/01M09HD09CG69RBJWCQ2ZHM4BP)
- [Company: Astronomer](https://rewindex.com/company/astronomer.md)

## Summary

Astro Hosted experienced intermittent task instance failures with major impact from 2026-08-18 04:17 UTC to 2026-08-18 07:36 UTC, lasting 3 h 18 min. Astronomer identified an issue affecting an internal rollout related to the pre\_execute Airflow hook and resolved the incident after completing a fix rollout across all Astro deployments. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2026-08-18 04:17 UTC: We have identified an issue affecting an internal rollout related to the pre\_execute Airflow hook in Astro Hosted. We have identified a fix and are rolling it out across the fleet. We are monitoring the rollout and will provide further updates as it progresses.
- **monitoring** 2026-08-18 04:18 UTC: Fix is being rolled out across all astro deployments.
- **resolved** 2026-08-18 07:36 UTC: Rollout has been completed

## Rewindex changes for this incident

- 2026-08-18 04:17 UTC: [Major incident: Intermittent task instances failures.](https://rewindex.com/change/ia30e360fb7c083.md)


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Canonical: https://rewindex.com/company/astronomer/incidents/01M09HD09CG69RBJWCQ2ZHM4BP · Markdown: https://rewindex.com/company/astronomer/incidents/01M09HD09CG69RBJWCQ2ZHM4BP.md · JSON: https://rewindex.com/api/v1/companies/astronomer/incidents/01M09HD09CG69RBJWCQ2ZHM4BP · Generated 2026-10-18T11:49:16.509Z