Transaction not yet indexed

668My1stVYWFGrLrbr6Cj4RWZw1NQDkQqBgC4zAHf7GyYAXsNfjPz89BJsVbjujkFr5P639kiLVabhRvgpfNZ2CV

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