Parallel Change Request Process in Material

I am trying to prepare the parallel processing scenario in MDG 7.0 for Material configured MAT01, MAT02, MAT06,MAT0A,MAT0B scenarios as it
is successfully.

Material Change Request Scenario MAT02 is working as expected. 

I just copied MAT02 change request and created parallel change request types PCMAT01, PCMAT02 and PCMAT03.

Screen shots of PCMAT01

PCMAT02 Screenshots

PCMAT03 Screenshot

While Executing Change Material, I am getting the following popup to select change request. But, When I choose the above 3 change requests,
Workflow is getting User Agent Error. Do we need to have any special BRF+ catalogs for these change requests as well? Or we use same MAT02 BRF+ decision table?

For Parallel change request scenario, apart from creating Parallel CR type, We need to take care of any BRF+ catalogs (new decision table
set) ,interlocking logic or any other special requirements?