Hi All, 

I faced an issue on " insert CFC (1739:60451) Illegal parameter assignment" when copy chart / PTT template from library to master data library / CFC chart folder. 

Unknown error in master data library / chart folder causing the PTT template unable to paste over. 

My solution is 

1. go to master data library/Chart folder of AS user project

2. Open CFC editor

3. Option->Block type -> Clean up

4. Select all and clean. 

The issue resolved after clean up.