Colorbar is not showing last tick

Hi,
I have added a horizontal colorbar to a heatmap figure and can't get the last tick to show. Here are some of things I tried and thought are the most logical:

colorbar= dict(
            orientation='h',
            y=1.01,
            tickformat=".0%",
            tickmode='array',
            tickvals=[0, 0.25, 0.5, 0.75, 1],
            showticksuffix='last',
            ), 

and

colorbar= dict(
            orientation='h',
            y=1.01,
            tickformat=".0%",
            tickmode='linear',
            tick0=0,
            dtick=0.25,
            nticks=5,
            ticklabeloverflow="allow",
            ), 

but both yield the same result:

I have also tried moving the bar around the x axis and played with labels and length, but it always seems missing.

Is this a bug?

Plotly: 5.24.1 and Python: 3.12.7

Plotly 5.24.1 と Python 3.12.7 を使用し、提供された tickmode='array' および tickmode='linear' の設定で水平ヒートマップの colorbar を再現します。colorbar が最後の tick をどのように処理するかを追跡し、1.0 の tick label が他のラベルに影響を与えずにレンダリングされることを確認して修正を検証します。