Toolbox - Drop File Error

Hi All,

For some reason im getting an error when I bring in a 1/2-13 Socket Head Cap Screw from the tool box.  I am using cosmetic threads and for some reason it doesnt like using it on this bolt size only..other sizes work ok.  It work before so im cofused why it doesnt like it now.  See attached.

any help would be greatly appreciated

thanks

SolidworksGeneral