stack chart proportion is not correct

[Jiatang]

My stack chart is defined like this:

 

            seriesDefaults: {
                type: "bar",
                stack: {
                    type: "100%"
                },
                spacing: 0,
                gap: 0
            },

 

But the bar's proportion is not correct. See the attachments.

[EZ]

Try setting the min: 0 and max: 1 or 100 on the valueAxis.

[Jiatang]

tried

0/100 doesn't work, 0/1 works. Thanks.