Transaction not yet indexed

YMpEM7kUsFXbG9BAGqzKbxsxWrRDMsWGcZFLfjfSSU1gZusYBw8PujRigDSQqW4fCTpvFhduu8daFREAEVC5Qn7

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