Transaction not yet indexed

21n6LAsV7MgqAn6hrsYqYjGPTcjEBQ4cNb71RqbWomjYggk4nk7NAKsRYmvTMxUxoTnq418iR44sKgY6uNfK4Skt

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