Hello,

I've a cartesian chart defined with a bar serie and a line serie.
Capture.PNG

I click on "High" item, of the legend, to disable the bar chart and see only the line series ("low").
But, the range (automatically) computed on the numeric axis ("y") is incorrect
Capture2.PNG


The full code is available here : https://fiddle.sencha.com/#view/editor&fiddle/2v5p

In my example, if I use a another data sample (comment "sample 2" and uncomment "sample 1", like this)

Capture3.PNG

it's works fine :

Capture4.PNG



This bug happens only if values of my data sample are small.