Polygon‘s proof-of-stake chain experienced delayed finality on Sept. 10 after a bug in some Bor/Erigon nodes forced validators to resynchronize, leaving transaction finality about 10–15 minutes behind while block production continued normally.
Polygon Foundation said a fix has been identified and is being rolled out to validators and RPC providers. According to the network status update, node restarts fixed the issue for many validators; others needed to rewind to the last finalized block before resyncing.
The problem was traced to issues on certain Bor/Erigon nodes and RPC providers. While blocks and checkpoints continued to be produced, the milestone issue created the lag in finality — the point at which a transaction becomes irreversible on-chain.
This disruption arrives weeks after Polygon deployed its Heimdall v2 upgrade, which aimed to deliver near-instant (~5 second) finality via a modernized consensus stack. The incident highlights how node software and RPC health remain critical to achieving those performance targets.
Market reaction was modest: the network’s POL token slipped about 3%, trading near $0.26 in early U.S. hours.
For users and validators: expect short confirmation delays until the rollouts finish and follow Polygon’s status page for updates. While this was not reported as a security breach, time-sensitive transactions and DeFi operations may be affected by slower finality.
Source: CoinDesk. Read the original coverage for full details.