Working in Capture CIS 17.4, I've created a heterogeneous multi-part symbol to separate the power and signal blocks of a component.  I've added the NC property to the symbol at the library level to "No Connect" pins 2,5, and 8.

Once placed on the schematic I get the following DRCs:

The footprint and the part have been triple checked and both contain 9 pins: U4A contains 3, U4B contains 3, and the NC property specifies 3.  I've tried deleting the property at the library level and adding it to only one Section of the part at the schematic level, but the same warnings are issued.  Is there a way to make the NC property defined at the library level work for heterogeneous parts? 

Thanks!