Transaction not yet indexed

Ex9aMpEVgS67h8BRtzC6QGDZ1GnQwpuykjKh5o1LB89jbW2ris4aNRtpUHkCNBPyVKWLPXjRC7EQGY2xrcSDJMJ

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