Transaction not yet indexed

64u99KnZuFUpmCbM2ZySt1umQwex9kmBy3G7LWp8nvSXbVb3jZFtqJdtEqmAvUzJWcjShsRDnnBTY1rFSMCgFuy2

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