Transaction not yet indexed

Na1aMLSNLSBSLS4PSEQhAQuTZrejHy8S2eQcMKmSpiq2J4Y8R4PR68YmZqne8eRjSPyYzVvYFVbxcR75ENeQ14J

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