If you guys have an issue with the Slic3r supports, please provide an issue through the github issue tracker.
Please provide a screenshot, an STL file, a config.ini file (generated by menu file->export config) and possibly the exported G-code. Only if I have enough information, I will be able to fix the issue.
You may also check the existing issues in the issue tracker, maybe the issue you are experiencing has already been reported. In this case it is best to extend the existing issue.