Straightforward solution here. Your RAC-based project doesn't have the System Family Types you usually use or your Fitting Families. You need to get them in your project.
* You will need to load the fittings into the project. This is a one-time task.
* Either create the System Family Types from scratch, or load them into the project using the Transfer Project Settings feature found in the File menu. An existing RME project should have the ones you want.
To create new System Family Types, you need to duplicate the existing Type. See the attached image.
HTH,
Kyle B
Revit MEP Product Manager
Kyle Bernhardt
Director
Building Design Strategy
Autodesk, Inc.