Articulate incident
Articulate 360 Desktop App: Creators can’t sign in
Affected components
Update timeline
- investigating Apr 21, 2026, 06:31 PM UTC
We’re seeing an issue where Creators can’t sign in to the Articulate 360 desktop app. You may see sign-in failures or get stuck during login. This impacts launching and updating apps from the desktop app. Our team is investigating now. We’ll share updates as we learn more.
- identified Apr 21, 2026, 07:00 PM UTC
The issue has been identified and a fix is being implemented.
- monitoring Apr 21, 2026, 07:22 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Apr 21, 2026, 08:26 PM UTC
This incident has been resolved.
- postmortem May 01, 2026, 05:47 PM UTC
#### Overview On 2026-04-21 between approximately 01:45–03:15 ET \(05:45–07:15 UTC\), Articulate 360 Desktop app users experienced authentication failures preventing access to the Articulate 360 Desktop application. The issue was caused by an infrastructure-level change that corrupted a signing key used in the authentication flow. The problem was identified and resolved within approximately 90 minutes. Web-based users were not affected. #### Incident Details and Timeline of Events **Impact:** * Articulate 360 Desktop app users were unable to complete authentication checks, blocking access to the desktop application * Web-based users were not impacted * Duration: approximately 90 minutes **Timeline:** * **2026-04-21 ~01:45 ET \(05:45 UTC\)** — Articulate 360 Desktop app users begin experiencing authentication failures. * **2026-04-21 ~02:00 ET \(06:00 UTC\)** — Issue identified by our engineering team and investigation underway. * **2026-04-21 ~03:15 ET \(07:15 UTC\)** — Fix applied and service fully restored for all affected users. #### What We're Improving * Adding safeguards so that misconfigured authentication credentials are detected at startup and prevent a service from going live, rather than causing silent failures for users * Strengthening our review process for changes to shared infrastructure components to ensure their impact across all services is evaluated before merging
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