Linked Behavior only works in same class [EA11]

[Max H]

I'm new to behavioral code generation, so I don't know if this worked in EA10 -- When I attempt to link an activity model to an operation, the code does not generate unless the activity is in the same class as the operation.  I also notice that the activity isn't included in the transform.

This means that I cannot define a behavior in the PIM, since it doesn't transform over to the PSM, and the reference appears in the Behaviors box, but only the GUID generates.  The same happens if I define the activity in a separate "Behavioral View" of the model.  There does not seem to be a way to get an external behavior to render in an operation.  Am I missing a setting?