I am working on a chart having multiple x and y axis. Data series is linked to these x and y axis. I have a tooltip which is shared and uses html and custom formatter. Below is the configuration of tooltip:
enabled: true,
useHTML: true,
shared: true,
split: false,
followPointer: true,
outside: true,
formatter: myTTFormatter
myTTFormatter gets the points array and I am able to get tooltip as well, but the problem is it appears for only the first series and when I hover over other series it doesn't show up. I put a debugger to custom formatter fn and it goes there as well, but I don't understand why the tooltip is not appearing when I hover over other series in my chart. Note: I have linked all other xAxis to the first XAxis to make the zoom work for all the data series.
HighCharts version: 9.1.2
Thanks for sharing a part of your code. I minimalized your code and it looks like a regression. This issue is already reported on the Highcharts Github issue channel and seems that is in process of working on that: https://github.com/highcharts/highcharts/issues/16004
Mnimalized demo: https://jsfiddle.net/BlackLabel/8jke1yvc/
If you don't need any of the new features use the previous version of the Highcharts: https://jsfiddle.net/BlackLabel/8osj6ch9/
<script src="https://code.highcharts.com/stock/8/highstock.js"></script>