Transaction not yet indexed

PKCmgUZbqb3KD7B7tMRBqxoFVgqgwdbYF1R51ptXfa1dG8dc6sqrg548g2UkbUm42sJg51fe9neZ3JrqCSUZBM9

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