# Mattermost: Collapse threads are not functional in part of Cloud workspaces

- Impact (vendor’s label): major
- Status: resolved
- Started: 2022-01-26 09:05 UTC · Resolved: 2022-01-26 16:04 UTC · Duration: 7.0 h
- Updates: 3 · Affected components: Cloud Workspaces
- [Vendor status page: https://stspg.io/5yzlnr6jvjwt](https://stspg.io/5yzlnr6jvjwt)
- [Company: Mattermost](https://rewindex.com/company/mattermost.md)

## Summary

Collapsed threads were not functional in some Mattermost Cloud Workspaces during a major-impact incident that started at 2022-01-26 09:05 UTC and was resolved at 2022-01-26 16:04 UTC, lasting 6 h 59 min. Mattermost reported identifying the root cause and working to mitigate affected workspaces, but did not specify the cause or fix. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2022-01-26 09:05 UTC: We identified the root cause and we are working to mitigate the impacted workspaces
- **identified** 2022-01-26 09:07 UTC: We identified the root cause and we are working to mitigate the impacted workspaces.
- **resolved** 2022-01-26 16:04 UTC: This incident has been resolved.

## Rewindex changes for this incident

- 2022-01-26 09:05 UTC: [Major incident: Collapse threads are not functional in part of Cloud workspaces](https://rewindex.com/change/i918262cf54efbc.md)


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Canonical: https://rewindex.com/company/mattermost/incidents/4c5klpzhgw2p · Markdown: https://rewindex.com/company/mattermost/incidents/4c5klpzhgw2p.md · JSON: https://rewindex.com/api/v1/companies/mattermost/incidents/4c5klpzhgw2p · Generated 2026-10-18T12:40:34.855Z