Violin plot with 'name' attribute set as Datetime gets flattened out

I'm trying to make a horizontally oriented ridge plot . Following is the code
plotly.version == 5.3.1

Ridgeline plot

base_date = dt.datetime.strptime(start_date,'%Y-%m-%d')
fig = go.Figure()

for day in range(days) :
                    offset = dt.timedelta(days=day)
                    date = (base_date + offset).strftime('%Y-%m-%d')
                    violin_plot_data = swData[date]
                    fig.add_trace(go.Violin(x = violin_plot_data.loc[:,metric_name] , 
                                                    orientation = 'h',
                                                    width = 3 ,
                                                    side = 'positive',
                                                    meanline_visible=True,
                                                    points = False
                                                   )
                                         )
    
fig.show()

I'm getting the following output :

However I wish to set "name" attribute for individual dates . I did the following

Ridgelin plot

base_date = dt.datetime.strptime(start_date,'%Y-%m-%d')
fig = go.Figure()

for day in range(days) :
    offset = dt.timedelta(days=day)
    date = (base_date + offset).strftime('%Y-%m-%d')
    violin_plot_data = swData[date]
    fig.add_trace(go.Violin(x = violin_plot_data.loc[:,metric_name] , 
                                    orientation = 'h',
                                    width = 3 ,
                                    side = 'positive',
                                    name = date,
                                    meanline_visible=True,
                                    points = False
                                   )
                         )
fig.show()

The output that I'm getting is

Kindly clarify if it's a bug in the framework or a silly mistake from my side . TY :)

EDIT : I've found a work around and answered it here [https://stackoverflow.com/a/69894008/6571670] but I feel Plotly should be able to parse dates explicitly

Reproduire l’exemple de ridge-plot fourni avec Plotly 5.3.1, d’abord sans, puis avec la chaîne datetime passée comme name de chaque trace de violon. Suivre la manière dont les noms des violons sont analysés et rendus, puis vérifier que les libellés de date restent distincts et que le graphique n’est pas aplati ; conserver le workaround signalé comme cas de régression.