Block production on Blockstream’s Liquid network has resumed after technical problems related to a functionary upgrade caused many transactions to queue for hours.

In a Monday update from a Liquid oversight board member identified only as Wiz, Liquid’s failsafe mode was activated yesterday as “an unexpected issue occurred causing block signer nodes failing to validate certain parameters against each other.” As a result, the network stopped producing blocks and transactions steadily queued in the Liquid mempool for roughly 22 小时, starting at approximately 5:19 pm Eastern Time on Monday.

Liquid mempool transactions. 资源: Liquid Network

Wiz reported Liquid developers have upgraded 10 的 15 functionaries, with block production expected to resume once one more has been fixed. Pending Liquid transactions had been queued in the mempool until the nodes were upgraded, which was completed on Tuesday as the network reported blocks were coming in.

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First announced in 2015, Liquid was designed to be a Bitcoin (比特币) sidechain aimed at speeding up BTC transactions settlements for crypto exchanges. The network supports its LiquidBTC (LBTC) tokens pegged to Bitcoin — there are 3,293 currently in circulation. 此外, the Liquid Federation has 57 成员, including crypto exchanges Bitfinex, 比特币交易所, and Huobi.