Empty process model lists in the Deployer during definition of Modeler deployment sets

Using Modeler 6.1.5 and Deployer 6.1 feature pack1 . When defining Modeler Deployment set I am not able to add any process models as the Process Model list is empty. I can see the source modeller server icon as well as the Models icon but it does not contain any of the process models I have in my design server.

Obtain and install Deployer_6-1_FP1_Fix4 - fixed the same problem for us.
Good luck.