Transaction not yet indexed

668QMvBsJcvbAAHDQ3cdMU2GEMwv8ookEmAkFkCugApWjJLkMkWMmwMDTG1gQ4dYzaX2nfNvGgkTd5k7SyNZDNMB

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