Bar chart with uniform text size and two axes

[Jubeen]

Hi,
In the following code, I have a bar chart with universal text size and two axes. I need to run a dummy for the second axis to populate, but then the universal text size does not work, as shown in the images. Any ideas?
Thanks

import plotly.graph_objects as go
from plotly.subplots import make_subplots
import pandas as pd

df = pd.DataFrame({'index': [0, 1, 2, 3, 4, 5, 6, 7],
                   'name_WWTP': ['Lahti 2', 'Lahti 1', 'Riihimäki', 'Kouvola', 'Hämeenlinna', 'Porvoo', 'Helsinki 1', 'Forssa'],
                   'PHA': [247, 314, 230, 299, 260, 135, 3184, 175],
                   'tran_cost_unit': [0.005, 0.005, 0.028, 0.036, 0.036, 0.045, 0.05, 0.059],
                   'PHA_cum': [247, 561, 790, 1089, 1348, 1483, 4667, 4842]
                   })

fig = make_subplots(specs=[[{"secondary_y": True}]])

for p in df['name_WWTP'].unique():
    dat = df[df.name_WWTP == p]
    fig.add_trace(go.Bar(
        name=p,
        x=dat['PHA_cum']-dat['PHA']/2,
        y=dat['tran_cost_unit'],
        width=dat['PHA'],
        text=dat['name_WWTP'],
        textposition='outside',
        textangle=-90,
    ))

fig.update_layout(uniformtext_minsize=12, uniformtext_mode='show')

# This dummy trace messes up the uniform text size.
fig.add_trace(go.Bar(
    name=p,
    x=dat['PHA_cum']-dat['PHA']/2,
    y=[700],
    yaxis='y2',
))

fig.update_layout(yaxis2=dict(
    title='Distance from Kujala (km)',
    titlefont_size=14,
    tickfont_size=14,
    showgrid=False,
    tickvals=[100, 200, 300, 400, 500, 600, 700],
))

fig.show()