New issue 218: Pattern disappears when Detail icon on icon bar is selected https://bitbucket.org/valentinateam/valentina/issue/218/pattern-disappears-when-detail-icon-on
Susan Spencer:
Pattern disappears when Detail icon on icon bar is selected and no Detail information has been created for the pattern.
It would be better to post a message that states there is no Detail information for this pattern, and to use the Detail tools to create seam allowances.