Model Link: Not seeing models from other modules.

A developer is configuring a model link field inside a module. (Let's call this module PRIM.)

He wants to make the field related to a model from another module. (Let's call this other module SCND.)

The developer's new module (PRIM) does have a module prefix SCND set in the module-decriptor.xml file.

He sees user role types from the SCND module in Permissions tab of the Module Process Template.mpt file.

However, he does not see the data models for SCND in the model link options of PRIM.

Are there any additional steps needed to set up module dependencies other than specifying the prefix in the module-descriptor.xml file?