Clip has different performances after CompositeVideoClip when use different moviepy version

[ExtraHan]

When I use version 1.0.3, the cross fadein and cross fadeout of ImageClip display normally after CompositeVideoClip , but when I use version 2.1.1, the vfx.CrossFadeIn and vfx CrossFadeOut is not displayed after CompositeVideoClip; But both v1.0.3 and v2.1.1 display normally only after concatenate_videoclips;

v1.0.3:
clips = []
for image_file in image_files:
clip = ImageClip(image_file,duration=image_duration)
clips.append(clip)

clips_with_transitions = []
for i in range(len(clips)):
clip = clips[i]
clip = clip.crossfadein(transition_duration).crossfadeout(transition_duration)
clips_with_transitions.append(clip)

final_clip = concatenate_videoclips(clips_with_transitions, method="compose")

composite_clip = CompositeVideoClip([final_clip])

composite_clip.write_videofile("output_video.mp4",fps=24)

v2.1.1:
clips = []
for image_file in image_files:
clip = ImageClip(image_file,duration=image_duration)
clips.append(clip)

clips_with_transitions = []
for i in range(len(clips)):
clip = clips[i]
clip = clip.with_effects([vfx.CrossFadeIn(transition_duration), vfx.CrossFadeOut(transition_duration)])
clips_with_transitions.append(clip)

final_clip = concatenate_videoclips(clips_with_transitions, method="compose")

composite_clip = CompositeVideoClip([final_clip])

composite_clip.preview(fps=10)

composite_clip.write_videofile("output_video.mp4",fps=24)