Trello outage, 17 May 2026
Trello - degraded performance
- Started
- Resolved
- 26 May 2026, 21:12 UTC (after 9 days)
- Impact
- Minor
- Affected
- Trello.com, API, Atlassian Support - Support Portal, Atlassian Support Ticketing, Atlassian Support Knowledge Base
Last update from Trello
# Summary On May 17th 2026 at 12:00 UTC a subset of Trello users experienced a degradation of some core functionality including but not limited to: issues with comments, viewing activity logs, accessing card details, board exports, Power-Ups, attachments, Home page updates, and search functionality. Some moved cards displayed 'Card Not Found' errors. These issues persisted for multiple days. Most of the issues encountered when interacting with Trello (commenting, viewing activity) were resolved by May 19 2026 at 08:31 UTC, however there was a lingering data integrity issue which manifested as “Card Not Found” errors when trying to open cards. >90% of these cards were repaired by May 28...
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