On November 22, news reported that Sui officials stated, "From 1:15 to 3:45 PM Pacific Time on November 21, 2024, the Sui mainnet experienced downtime. All validators fell into a crash loop, resulting in an inability to process any transactions. The Sui network experienced its first network failure due to a bug in the congestion control code. This bug stemmed from a recent upgrade to the congestion control code aimed at better utilizing shared objects. Sui contributors quickly deployed a fix and restored normal network activity within 2.5 hours."