Polygon experienced a minor incident on September 19, 2026 affecting Mainnet Tendermint API and Mainnet Heimdall API and 1 more component, lasting 20m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 19, 2026, 07:15 PM UTC
Status: Investigating Around 7:15 PM UTC we noticed degraded performance affecting block production on Polygon PoS Mainnet. Users may have experienced delayed transaction confirmations. We will provide updates as more information becomes available. Affected components Mainnet Public API (Degraded performance) Mainnet Tendermint API (Degraded performance) Mainnet RPC (Degraded performance) Staking API Mainnet (Degraded performance) Mainnet Heimdall API (Degraded performance)
- resolved Sep 19, 2026, 07:35 PM UTC
Status: Resolved The degraded block producer has been rotated and the fix has been applied. The network is healthy again. We've confirmed the network has remained healthy and stable. Affected components Staking API Mainnet (Operational) Mainnet Heimdall API (Operational) Mainnet Public API (Operational) Mainnet Tendermint API (Operational) Mainnet RPC (Operational)