Transaction not yet indexed

21a6X2uvX6sFh3DwkbBPhpcNDNdW9zNj2Z6ZfDgKnGpc2zE1G2X1Urbo4aMaZ9pGcFsmD4KQoAopwQSWDNTKsni1

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