just once

qiskit_experiments/library/randomized_benchmarking/rb_experiment.py

@@ -383,8 +383,8 @@ def _transpiled_circuits(self) -> List[QuantumCircuit]:
         # Compute average basis gate numbers per Clifford operation
         # This is probably main source of performance regression.
         # This should be integrated into transpile pass in future.
-        for circ in transpiled:
-            qubit_indices = {bit: index for index, bit in enumerate(circ.qubits)}
+        qubit_indices = {bit: index for index, bit in enumerate(circ.qubits)}
+        for circ in transpiled: 
             count_ops_result = defaultdict(int)
             # This is physical circuits, i.e. qargs is physical index
             for inst, qargs, _ in circ.data: