Transaction not yet indexed

Db56UF2RFGvRBzdrHRXovPmCywRPqqW5jaAMqWtqeMUN9GhoLndq5fb9gGnfG8Rc2RfU6z7qgBoiDVLo6JUTUMU

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