Outage in Avalanche

Fuji(Testnet) C-Chain Helicon Block Indexing

Resolved Major

July 28, 2026 - Started 5 days ago - Lasted about 2 hours
Official incident page

Incident Report

We are currently investigating delayed C-Chain block indexing on Fuji (Testnet) after the Helicon activation. This impacts Fuji (Testnet) ONLY, Mainnet indexing is fully operational.

Components affected

Avalanche Explorer

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Latest Updates ( sorted recent to last )

RESOLVED 5 days ago - at 07/28/2026 05:13PM

This incident has been resolved.

MONITORING 5 days ago - at 07/28/2026 04:34PM

A fix has been implemented and we are monitoring the results.

IDENTIFIED 5 days ago - at 07/28/2026 04:08PM

The issue has been identified and a fix is being implemented.

INVESTIGATING 5 days ago - at 07/28/2026 03:52PM

We are continuing to investigate this issue.

INVESTIGATING 5 days ago - at 07/28/2026 03:51PM

We are continuing to investigate this issue.

INVESTIGATING 5 days ago - at 07/28/2026 03:46PM

We are continuing to investigate this issue impacting Fuji(Testnet) C-Chain block ingestion.

INVESTIGATING 5 days ago - at 07/28/2026 03:31PM

We are continuing to investigate this issue impacting Fuji(Testnet) C-Chain block ingestion.

INVESTIGATING 5 days ago - at 07/28/2026 03:10PM

We are continuing to investigate this issue impacting Fuji(Testnet) C-Chain block ingestion.

INVESTIGATING 5 days ago - at 07/28/2026 03:09PM

We are currently investigating delayed C-Chain block indexing on Fuji (Testnet) after the Helicon activation. This impacts Fuji (Testnet) ONLY, Mainnet indexing is fully operational.

Latest Avalanche outages

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AvaCloud instability - over 1 year ago

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P-Chain Transaction Processing Delays - over 1 year ago

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