Transaction not yet indexed

21Tcfb3jP4FSgkfCn6eb2hfxAdGW9Mddxq5mcowWmwLwrRHApcCdE8dBpevCeLSLquRV7Q817LGs3pnoK4FdJf28

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