Transaction not yet indexed

SMmefL4fD4F4cfZKWrHudYpHqTYaL7CSYv5KSbP6ER168pyBWsEQLQWZqPuTAndNagpcwSG8nk4xTvyqYa9fgHS

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