Thanks for the question.
To clarify -- to change the Industry listed in your profile:
Go to My Profile and Settings. Click on Mentor profile or Entrepreneur profile (as appropriate). In the first question on that page (What is your primary industry) select a new option. Scroll to the bottom and click Save Profile
If, however you already were aware of that process and are experiencing a bug, could you please write us at firstname.lastname@example.org and let us know what browser and platform you are using? (For instance, Chrome on Windows, or Android browser on an Android phone, etc.). One way or another we will be able to help you out!