Transaction not yet indexed

XKoS5mg1hcNkukbhqehNpAYGQNC2e6GwBFKr6vvrEjp4MwwJgGHi1LZLNp7yMmVvJfMfrstFZCBAcsX4MCKEMb2

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