Plain experienced a minor incident on September 17, 2026 affecting app.plain.com and Chat API and 1 more component, lasting 11m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 17, 2026, 12:27 PM UTC
Status: Investigating We are currently investigating an incident causing degraded performance across parts of our platform, including elevated error rates and delayed processing. Some customers may experience slower response times or delays in certain background operations. Our team is actively investigating and working on a resolution. We will provide updates as more information becomes available. Affected components app.plain.com (Partial outage)
- resolved Sep 17, 2026, 12:38 PM UTC
Status: Resolved Between 12:19 and 12:37 UTC, some customers experienced degraded performance in Plain, including slow page loads, delayed API responses, and delayed live updates to threads. This was caused by a backend job consuming excessive database resources. We've applied a fix and confirmed performance has returned to normal. We're sorry for the disruption. Affected components app.plain.com (Operational) GraphQL (HTTP) (Operational) Chat API (Operational) MCP (Operational) Help Center API (Operational) Webhooks (Operational) GraphQL (WebSocket) (Operational)