Blockchain Explorer For Tron https://case.edu/cgi-bin/newsline.pl?URL=https://cryptoexplorerhub.com So, when there is a large number of transactions inside the mempool therefore you compensated a relatively reduced transaction payment, your transaction can continue being unconfirmed for an prolonged length of time because miners/validators will pick transactions with increased expense... http://pandora.nla.gov.au/external.html?link=https://cryptoexplorerhub.com