折线图颜色渐变有null画不出来

[xyr550]

代码如下
import { Chart } from "@antv/g2";

const chart = new Chart({ container: "container" });

chart.options({
type: "line",
theme: "classic",
data: [
{ x: "a", y: 4 },
{ x: "b", y: 20 },
{ x: "c", y: 10 },
{ x: "d", y: 11 },
{ x: "e", y: null },
{ x: "f", y: 8 },
{ x: "g", y: 13 },
],
encode:{
x: 'x',
y: 'y',
color: 'y',
},
style:{
gradient: 'color'
}
});

chart.render();

[xyr550]

大佬，还有就是颜色通道里没有null, 能正常画出来，但是y通道有null, 导致滚动条失效报错

此场景代码如下
import { Chart } from "@antv/g2";

const chart = new Chart({ container: "container" });

chart.options({
type: "line",
theme: "classic",
data: [
{ x: "a", y: 4 , y2: 12},
{ x: "b", y: 20, y2: 4 },
{ x: "c", y: 10, y2:8 },
{ x: "d", y: null, y2:6 },
{ x: "e", y: 7, y2:12 },
{ x: "f", y: 8 , y2:7 },
{ x: "g", y: 13, y2:22 },
],
encode:{
x: 'x',
y: 'y',
color: 'y2',
},
style:{
gradient: 'y2'
},
scrollbar:{
x:{}
}
});

chart.render();