Transaction not yet indexed

21mkPSN78Med1EFNP5o22sDXDnhv2eD5TNgZXzJDfbdXMceuQ1ZPcmnqccTwCoEu53WqvGWNfQs1VKgpDGeM2rXB

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