Transaction not yet indexed

421U9PjdTtpw7JB4nFCfPLhYuQUudBwPR23Fmb6HLYPLCpSxz46PYoUSypXRgh3EcH66EYBnWoZRnYkJtSSZRws4

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