Transaction not yet indexed

LffkHUnAaXFfcdmRJugbMMAMajuEWx2uCSPLVHDPHJkk2P84n9noDLQcLDkdvu2oCeWfEQHoRHKMaEdExhosEnS

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