Transaction not yet indexed

21CkKPjadfDGpDFJ5u1z12qRp7nH9mtr5pd4nQ1uadNmgVeAspvHcasev9U6WefBJ6JTU6itPuvr9UdTJJKur85v

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