Polygon encountered a brief disruption of its network on Wednesday due to a technical issue with Heimdall V2. The problem was caused by a bug in the consensus mechanism and has since been resolved by the development team.
Heimdall V2 Issues
Heimdall V2 plays a major role in the Polygon Proof-of-Stake (PoS) architecture. It oversees validator coordination, block management, and data alignment between Polygon and Ethereum. Around 9:30 AM UTC, this component briefly ceased functioning due to an issue related to validator exit activity.
RPC Sync Issues After Recovery
After Heimdall was restored, the Polygon team noticed that some RPC services had sync issues with Bor nodes. These services connect users and applications to the network. To resolve the issue, the team began working with each RPC provider to restore normal operations. A spokesperson stated: 'Following Heimdall’s recovery, we observed sync inconsistencies emerging across several RPC providers.’
Heimdall V2 Technical Advancements
The consensus issue arose shortly after the launch of the Heimdall V2 upgrade on July 10. This update introduced significant improvements to the Polygon PoS system, including: reducing finality time to 5 seconds, enabling real-time transfers for users; implementing CometBFT and Cosmos-SDK v0.50 to enhance performance and reliability; it makes Polygon suitable for regulated finance and custodial systems handling real-world assets.
Despite temporary technical setbacks, Polygon remains one of the most widely used Ethereum scaling networks, with over $1.1 billion in total value locked in its ecosystem. Timely resolution efforts reflect the platform's resilience.
