Issues with 6.1, drag and drop and component library

[jjmarini]

The project I work on has developed a component library first for Creator, which I have ported to NetBeans 5.5.1 and now Netbeans 6.0.1. All works fine. When I try to use Netbeans 6.1 drag drop at first seems to work fine. Howeve when I compile the project or Netbeans tries to reparse the project the property page looses all its attribute values for the tag. Though the JSP page still contains the correct attribute values. Does anyone know what is going on?