Strange negative y axis values

Ever since I recently upgraded Plotly, I am getting some strange y axis value labels for negative numbers:

negative

Has anyone seen something like this before? These are from graphs generated with to_html(). I cannot quite pinpoint the cause. Thanks.

Hi @valankar, yes we had similar topics:

Same issue here. Values in the dataframe were float type. All values are negative, but on the y axis tick marks they show up with a strange a symbol with an accent.

Hi @gerard, which plotly version are you using?

Seems itโ€™s a known UTF issue. See this bug:

Gibberish / malformed / strange negative y-axis values ยท Issue #4118 ยท plotly/plotly.py (github.com)