I’m getting the same error working with June/2017 in the following 2 cases:
A) using GeoAnalytics Animator
B) using Range Slider extension
I presume that some function(s) from .js or other files (belonging to these 2 Qlik Sense objects) do not cope with my behavior and throw this null pointer exception:
A) Time between Steps is so short, that charts are hanging on calculating according to the previous value whereas the next value already has been selected
B) Moving the slider to slowly the respective variables get different values one after another what is fatal for complicated calculation in different charts.
The better way to find solution is to specify what exactly you’re doing.