Transaction not yet indexed

MmmpciyKNXa4eX4LuHL2Hz4P316jEyB1CZLcKGA1fsmWwvqv2vSSecHEwLAnuheEhWQ4qBY2Q1Nq1t3ch3J8FPt

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