The most important piece of information to include when reporting a bug is the Skill Code. This can be found in two places. In the teacher app, you will find it any place that you can view a sample problem (from student's current problem, from the Mixed Review report, or from the WORK screen).
In the student app, it can be found under the selected problem or from Statistics in the student menu.
Click the student menu.
Choose Statistics.
You can send us a message via intercom chat, with the Skill Code and a description of the problem. Screenshots are always helpful as well.