[Paradex Refunds $650,000 to 200 Users Due to Liquidations Triggered by Database Maintenance] Paradex released a report on January 19 regarding a maintenance vulnerability that led to liquidation events, stating it will refund $650,000 to 200 users. Previously, Paradex had planned a 30-minute database upgrade and maintenance, but unexpected issues arose during the upgrade process. During critical data operations, a race condition occurred when the service restarted, causing corrupted data to be persisted to the cloud and published to the Paradex Chain. As a result, the funding index for certain markets was reset to zero, leading to abnormal profit and loss calculations and triggering liquidations across multiple markets. Paradex temporarily shut down platform access, canceled all open orders except for take-profit and stop-loss orders, and rolled back the blockchain to a snapshot taken before the maintenance window began. Earlier reports indicated that Paradex temporarily became fully unavailable due to rolling back the chain state during database maintenance.