Business Process Model(Solution Manager Language)

I have a Business Blueprint in SOLMAN (Implementation project) in that I have defined

Business Scenarios

Business Process

Process Steps and

Transactions.

I tried to import it into Power Designer (16.6) through SAP Solution Manager Import option. But only scenarios and process are importing into Power Designer not process steps and Transactions.

In Business Process properties it showing the list of process steps and also in the browser. Once if I click on it to find in diagram it was showing that

"The object has no visible symbol".

Please help me how to get all those objects into Power Designer.