modified toolbox parts don't update in assembly in S 2016

I updated my SW toolbox with part numbers and descriptions using the export/import function.  The toolbox now shows the information.  When go I to an assembly drawing with those screws it doesn't show the part number or the description.  I tried rebuild.  Is there a trick to updating toolbox parts in the assembly drawing ?  Right now the only way the updated information shows up is if I delete the existing screw and insert a new one.

SolidworksAssemblies