Unable to create process flows by copying/editing existing process flows using export/import

We try to create a set of process flows/modules by copying/editing existing process flows/module using export/import. 

1. Export the process flow 

2. Edit the export file to change the module names

3. Import the process flow using the modified export file.

According to the error in the output:ORA-20098: For a chain - program must be null or equal to the module name,  The following data in the modified .exp file will show:

so_program=<incorrect_value>

Change this line to

so_program=

and re-run the import.