child LevelSequence's Tag cant show in master levelseqeunce

unreal 5.1 …
The tags added in the subsequence are not displayed in the master sequence, and you can only enter the subsequence in the master sequence to add tags.Y? I was making a plugin for adding tags. It was successfully added in the subsequence, but it was not displayed in the main sequence.I also have this problem manually adding。thanks help~

def set_master_sequence_shots_tag(p_master_seqeunce):
master_track_array = p_master_seqeunce.get_master_tracks()
for track in master_track_array:
section_array = track.get_sections()
for section in section_array:
sequence = section.get_editor_property(“sub_sequence”)
movie_scene = sequence.get_movie_scene()
spawnables_array = sequence.get_spawnables()
for spawnables in spawnables_array:
binding_id = spawnables.get_binding_id()
tag_name = get_binding_tag(str(spawnables.get_display_name()))
unreal.PythonToolsBPLibrary.movie_scene_tag_binding(movie_scene,tag_name,binding_id)