Transaction not yet indexed

MC66JbKR1nbTDEUtCFS8f7fjpRYDByFqnaX1FbHq16BCLUpyTYWfAan4Fh28SvJSsuGgCRiRqbTpePXvgVGGUF9

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