p578559783 commented on issue #16958:
URL: https://github.com/apache/echarts/issues/16958#issuecomment-1327152726
可以尝试下 ，遇到过这个问题，折腾一阵子，发现把seriesIndex 设置成0就可以正常了
myChart.dispatchAction({
seriesIndex: 0, //修改成0
dataIndex: 4,
type: 'showTip'
})
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