Investigate pie chart image export and copy to clipboard issues

[joaoviana]

Description

users are reporting issues with pie chart image exporting

Steps to Reproduce the Bug or Issue

Unable to download PNG from chart TypeError: Cannot read properties of null (reading 'length')

version

No response

Cloud or self-hosting

Self-hosted

[lightdash-bot]

This issue was mentioned by a user in slack: https://lightdash-community.slack.com/archives/C03MG2VTR08/p1742894608409599?thread_ts=1742894608.409599&cid=C03MG2VTR08

[ZeRego]

We identified the error originates from the chart library.
Reported the issue here: apache/echarts#20904