Bug when using pulse draw with backend set up

[pop756]

Environment

• Qiskit version: 1.1.0
• Python version: 3.11.9
• Operating system: jupyter notebook

What is happening?

When I used real backend, pulse draw cause this error

How can we reproduce the issue?

from qiskit import QuantumCircuit
from qiskit import pulse
from qiskit import schedule



circ = QuantumCircuit(2, 2)
circ.ecr(1, 0)
from qiskit import transpile
circ = transpile(circ,backend,optimization_level=0)
pulse_schedule = schedule(circ,backend=backend)
pulse_schedule.draw(backend=backend)

What should happen?

TypeError: 'str' object is not callable

Any suggestions?

When I changed the code like this, bug is fixed.

[HuangJunye]

I can reproduce the error.

[HuangJunye]

It is fixed by #12608. Verified this issue is fixed by installing from the main branch.