Something wrong with the formating of indexes with px.imshow()

[sorenwacker]

using plotly '5.13.0'

I get this result:

[sorenwacker]

[sorenwacker]

Plotly express is missinterpreting the index as datetime.

[alexcjohnson]

This might be happening at the plotly.js level... there's some funny axis autotype logic that may be interpreting at least your first three age groups as dates. Can you try:

fig = <your heatmap>
fig.update_yaxes(type="category")
fig

and see if that fixes it?

[sorenwacker]

Will try that.