Transaction not yet indexed

21Nkay86mbWB78KcvXcYUvU2L7Lruqf77PCefhtmnmpPZ3eZEv78BKe8rM5Gxu8JZQkKK8Sdvcugrz7vkmJBsGFr

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