Hi Amer,

Can you tell me what are the table types - from the source data of these charts?

Are they perhaps Manual tables, or SQL Query based, or tables linked from a Sheet like Excel/CSV/Google Sheets?

Did you change something in the column structure from one or more of the chart source tables?
For example - if you change a column header name, to any column which is already chosen for a chart;
or remove a column which is used in a chart;
Or change the data type - All these changes can create an issue and a connected chart would stop rendering.

Let me know if that helps to isolate it?

If not - can you check do all the charts load correctly at the back-end in WP-Admin?
Is there any chart that does not load there?

If any chart doesn't load on back-end Wp-Amin in Chart Wizard preview - can you try making a new chart from the same table, see if that works?
If you are able to make a new chart from the same table - then check is it possible that you made any column structure change - for any column used in the old chart that made it 'break'?

• Or, if it's not always the same chart, but as you said - random on the Page, like sometimes Chart 1 and 2 and another time chart 4 and 5;
  
  It could be if your source table(s) are server-side processing enabled and if you have any caching active on your WP Page.
  If so - please try excluding the URL where you got tables/or charts from caching - that should solve it.
  
  Let me know if that helps.
  
  
  

Hi Amer,

Thank you very much for sharing what you did to resolve this issue. It will be very useful for other users who might experience the same issue.

If anything else comes up, please don't hesitate to open new tickets.

Thanks again.