Transaction not yet indexed

MLYSirZRqTBwcUaSYmmAAQCcuSMrx6YJobXLBfCPJpXJ2XMMWjGYtTr2fpZCGrMGTs25tMGzeQe9uNpU9qU7wrz

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