The app works as intended, but I cannot use it together with other dashboard visualizations that contain datetime fields, because for some reason the datetime values are shown as "undefined undefined". For example, if I place a line chart on a dashboard together with my custom visualization the line chart will render like this:
Somehow my custom visualization seems to overwrite something, that causes the line chart to not show the datetime values. The overall shape of the chart is fine, so the datetime values are there, they are just not displayed correctly.
It doesn't have to be a line chart, even in the search app the _time field is shown like this:
I went through my custom visualizations code, but could't find anything related to this problem. Maybe Plotly.js is the problem? Am I missing something in the Splunk documentation?