Hi there again,
using twenty twelve (wich is my theme father), if you have archive-question.php in your theme folder this template is pick by the "question/user/xxx" url (in my case is translated in each subsite). Instead of showing the profile page with the activity in the Q&A an archive page with no sense information appears.
Even removing the archive-question.php file from the theme, the information that appears in the profile page is incorrect...
Please let me know some fix.