# Why the pulse scheduler produces a different output from the original circuit?

As part of a larger code, I have to convert a quantum circuit into a Pulse scheduler. The problem is that the scheduler output is incompatible with the circuit output. In particular, the difference between the circuit output and the expected output seems to be compatible with the statistical error, while the scheduler output does not converge to the target state for a large number of shots.

This is an example:

from qiskit import circuit, transpile, schedule
from qiskit.test.mock import FakeAthens

backend = FakeAthens()

circ = circuit.QuantumCircuit(5)
circ.h(0)
circ.measure_all()
circ_transpiled = transpile(circ, backend)

#without scheduler
counts = backend.run(circ_transpiled,shots=100000).result().get_counts()
print(counts)

#with scheduler
scheds = schedule(circ_transpiled, backend)
sched_counts = backend.run(scheds,shots=100000).result().get_counts()
print(sched_counts)


What is the source of this difference? And what can I do in order to produce the right result with the pulse scheduler?