Transaction not yet indexed

21ak18mQDpJTCyBSGyLbCztJtysSjG9EQswMws9CqA5svD7pjZeCTdvbXYegJ4z2XWW2FL5StQmWN6vwpm1Tqreb

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