Assembly experienced a minor incident on September 21, 2026 affecting App Builder, lasting —. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 21, 2026, 05:18 PM UTC
Status: Investigating We are currently experiencing an issue where navigating a LIVE app incorrectly triggers the preview-loading experience instead of going straight to the live app, and that loading state can hang for 1+ minute, sometimes ending in an error. We are actively investigating and will provide updates as we learn more. We apologize for the inconvenience and appreciate your patience while we work on a fix. Affected components App Builder (Degraded performance)
- identified Sep 21, 2026, 05:29 PM UTC
Status: Identified The issue has been identified, and our team is working on a fix that will be deployed soon. Thank you for your patience. Affected components App Builder (Degraded performance)
- monitoring Sep 21, 2026, 05:48 PM UTC
Status: Monitoring The fix has been deployed, and we are monitoring the system to ensure everything is functioning as expected. We will provide an update once this is fully resolved. Affected components App Builder (Degraded performance)
- resolved Sep 21, 2026, 05:50 PM UTC
Status: Resolved The issue affecting live app previews has been resolved, and everything is back to normal. We will continue monitoring to ensure stability. We apologize for the disruption and appreciate your patience while we worked on the fix. If you experience any further issues, please contact [email protected]. Affected components App Builder (Operational)