Transaction not yet indexed

Kk6CfqVvaoKcCU5PvJCXFDmvcmt5Wqcf4EWzi6U2brTXpUC7ucv6aSBDeJqee7x7trCwtPjSZMbvkVXTWr5SMUE

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