Transaction not yet indexed

ddk6AyqBgpujugAsMmmQGDQ15jmctNugEQQ8nLSNZDPgFofTKdZ43yf6CxAw8MnTn5N3cRkYARfiRnBu9QFsva4

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