Cosmetic thread problem

I have see this issue before and it may be drawing scale related. Most every time we insert a cosmetic thread into an assembly drawing view, it initially displays correctly; but once the command is completed the line font displays as a thin solid line. I have tried to correct this using the document properties for cosmetic thread fonts and high quality display. But nothing corrects the problem. I have found this to only happen with assembly drawings, not in part drawings. Does anyone know of any resolutions?SolidworksDrawings And Detailing