Sui Network experiences repeated major outages, SUI token falls below $1

In May 2026 the Sui layer‑1 blockchain suffered a series of severe network stalls. A bug in the gas‑charging logic introduced in the 1.72 software release caused the mainnet to halt block production for up to six hours on May 28, and a second stall occurred the following day. An additional outage later in the month was triggered during an epoch‑transition when validators failed to complete the randomness initialization, exposing a deeper consensus problem.

The network was brought back online each time after validators applied interim patches followed by long‑term fixes. The Sui Core team confirmed no user funds were lost and that the disruptions were confined to transaction processing. A post‑mortem report is pending.

Market reaction was swift: the SUI token slipped below the $1 support level, falling as much as 20 % and shedding several billion dollars in market capitalisation. Prices reported between $0.89 and $0.92 accompanied a sharp decline in trading volume. The repeated downtime has raised concerns about the reliability of high‑throughput blockchains and prompted scrutiny of validator coordination and upgrade procedures.