Transaction not yet indexed

KKo53ExWyup3Xiff239iMTG9MeAWQZ7SE3h3wmnxVTuMXCB9erpaZ8BC9PAUVmZbLb8sSn2mw9JuCtrPZKvM58y

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