With the new Helix QAC version (3.3.4) the output graphs (MISRA compliancy and Messages per Build) are displayed as a canvas element instead of an image with url. 
This makes it impossible to display these graphs on the dashboards and thus are only visible after clicking on the QAC job. 
Would love to see a way to either, include them in the dashboard-view-plugin or make them again available as URL.