Transaction not yet indexed

3Ex6fmdWp3pgmGppwyZa6jw2DEKn1FeCZEFnT2VJnSRiiG1rgVTL7Gj9mpBdPjoHJMDnsXRZPW8ZoaNs4GsLvRS3

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