Bucket Card Bug(?)

[#1]

Hello!

I am currently looking at the Data Manager Calculations and Transformations module for QS June 2017 in Qlik Continous Classroom.

When working in the data manager bucket card, I get the following error message:

Clicking refresh throws me out of the view and back to the Data manager view while I also lose any changes made.

Is there any place I can report this as a bug, or is it just that I'm doing something wrong?

\\ Christoffer