Hello,

Can you confirm which Chart Engine are you using?

If you use HighCharts, and if you have WP Rocket installed for some Website Optimizations+Cache, currently there is a conflict, but we have a solution.

Our developers helped us isolate the issue and here is how you can fix this.

Please first disable this option in our Plugin settings/'Use stable HighChart version'.

Then, go into your WP Rocket settings and find this section: "File optimization ( Optimize CSS & JS)".

In Excluded Javascript Files, insert "code.highcharts.com/", as on this screenshot :

After that, the issue should be fixed.

Let me know how it goes.

If you don't manage to solve it from your end, we can do this for you.

If you need us to do this, please provide me a temporary WP-admin (administrator) user for your website where this happens, so we could log in and take a look ‘from the inside’ as that’s the most efficient way to see and resolve the issue. 

We do not interfere with any data or anything else except for the plugin (in case that’s a production version of the site), and of course, we do not provide login data to third parties. 

You can write credentials just set the reply to PRIVATE, so that nobody can see them except us.

And point me to the Chart ID, please.

Thank you.