Dear Phemex Users,We would like to inform you that Phemex is planning a scheduled hotfix at 11:00 – 11:30 UTC on January 3, 2024 for our USDT Perpetual services to enhance the trading experience and maintain the highest level of performance.

Source: https://phemex.com/announcements/scheduled-hotfix-for-usdt-perpetual-services-on-january-3-2024