I am exporting a scatter & Box plot using exportChartLocal(). When number of points is greater than approx 2500, it exports a blank chart and when number of points is less, it works correctly.
Sorry, I was not able to reproduce it on jsfiddle.
I have tried to reproduce that issue and here are results: https://jsfiddle.net/BlackLabel/Lmxnuyos/
Roughly 3000 points total and chart still exports fine. However, exporting more points might not be possible due to our limitations. I believe that this could be the reason for exporting blank chart. In such cases you need to setup your own export server.
https://jsfiddle.net/pw69hjdt/8/
In this example, I am able to export approx 8000 points using offline module. But in my code, it exports blank (offline module) chart if number of points exceeds approx 3000
The provided demo works fine. Please add a live demo based on your code to show the problem.
If this works fine in the demo and in your code it doesn't then it looks like the problem is within your code - without the code there is not much that we could help here as there is nothing to check or debug.
Maybe turboThreshold plays tricks on your chart, but by default, the threshold is set to 1000.
Maybe the used browser (name + version) is the problem source.
Maybe something else.
If you are not able to recreate the problem in a live demo in the JSFiddle then you could:
- check if versions of Highcharts and its modules match your code and the working demo
- disable all unrelated code to make the both (working and broken) chart more similar code-wise
- share the problematic chart another way - file, URL, GitHub repository, different JS sandbox than JSFiddle, etc.