Transaction not yet indexed

MkP44wj4G3ZP56vz1tfjbeYcK9T4xPxqZeD7mbj5PAQbbWSbkUJ281YJBmjJm6xfLnAgtDXbJ36DtDs7BQ9bEx8

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