[Bug] Zoom panel line is broken

[winkyBrain]

Version

5.4.1

Link to Minimal Reproduction

https://codesandbox.io/s/stacked-line-chart-forked-wxxkh0?file=/index.js

Steps to Reproduce

Just add series from the link

Current Behavior

There is no line on zoom panel at all

Expected Behavior

At least one line on the panel. Ideally display all the lines on the zoom panel if it possible

Environment

- OS: Windows 10
- Browser: Chrome, Opera
- Framework: Vanilla JS

Any additional comments?

No response

[helgasoft]

Related to #17487, #17850 and #17143 (easily found if searched)
DataShadow will show a line area only for non-null sections of first line. Demo Code
Your first line has just one point and dataZoom.dataShadow shows just one vertical line to address it.
line.connectNulls does not help.
Other lines are not shown in dataShadow except first.

[winkyBrain]

So there is no way out?

[winkyBrain]

Still need an answer

[github-actions]

This issue has been automatically marked as stale because it did not have recent activity. It will be closed in 7 days if no further activity occurs. If you wish not to mark it as stale, please leave a comment in this issue.

[github-actions]

This issue has been automatically closed because it did not have recent activity. If this remains to be a problem with the latest version of Apache ECharts, please open a new issue and link this to it. Thanks!