Transaction not yet indexed

21AUnMCke1rFAtFSFQbjVAzoaNxRaAi46PZ6DkVNNSbqpcagQMimEPxYk8vQfRf5Sn52NM5uz633bR5WFbMzWgR2

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