The Web Parts are missing from the Ribbon Category when being viewed from the Web Part Manager.
Title
Web Parts missing from the Ribbon CategoryDescription
Cause
You are either not licensed for all QuickApps web parts or an incorrect license was applied.
Resolution
If you should be licensed for all QuickApps and it is not showing, open the license file with Notepad and ensure it says something to the effect of "Bundle=QuickApps for SharePoint". If the license doesn't or has been coded incorrectly, please contact your sales rep or Licensing.
Defect ID
You are either not licensed for all QuickApps web parts or an incorrect license was applied.