Possibly the low fee is the reason ? Size 3211 (bytes) Fee Rate 0.003114294612270321 DCR per kB From sample-dcrd.conf : ; Specify the size in bytes of the high-priority/low-fee area when creating a ; block. Transactions which consist of large amounts, old inputs, and small ; sizes have the highest priority. One consequence of this is that as low-fee ; or free transactions age, they raise in priority thereby making them more ; likely to be included in this section of a new block. This value is limited ; by the blackmaxsize option and will be limited as needed. ; blockprioritysize=50000 edit: similar problem ? https://forum.decred.org/threads/multiple-transactions-failing-to-confirm.3740/