Transaction not yet indexed

ku3cbDqWS5PG9N5ijQU9q1ksAZBtfJ89LMuST3aF1ETcAbuPfV5pXivFYY2mchJYG6ukUYvcW7uRdS3PVM9Ttpb

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