Transaction not yet indexed

USC8tAJSYMQUNGFJenpC7Rm26HnAY9mzwvaL1P2yEXnPvTnTmJb3MuBNjdYQ8Bgtuo55xSs6ESGV1ht1JL8Kh18

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