Blockchain Explorer Gate Io https://www.demilked.com/author/brownelivingston04/ So, if there is a large number of transactions while in the mempool and you also paid a comparatively very low transaction cost, your transaction can continue to be unconfirmed for an extended period of time because miners/validators will find transactions with better costs initial. https://bookmark-nation.com/story20245470/explorer-blockchain-usdt-the-definitive-guide-to-blockchain-explorer-tron-https-cutt-ly-3rj9ygbc