Transaction not yet indexed

DdDt7uuTDmr38pJ4qqAXv792qCqEmFRbWks88cbGprJCvcM9Qkqd5CP3zppofPFuF6S2LWDq1vsRpwrVZ8jEgC7

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.