Transaction not yet indexed

21Cfvzb1udxWAaztEvATwj4KaZ6GcoVCKFaXwcgRh6ba343AcbLyVThK6JhAUNuLQ6QsqPqCji3oWNvPr7u2ZBA6

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