Crashing of solidworks

Hi. When I try to copy a toolbox element by ctrl+drag, it freezes or even crashes solidworks. That happens for example clicking and draging on screw thread surface while holding ctrl key. But there is no problem while clicking on vertice of the screw. Did anyone else notice this phenomen?

This might not happen in fresh new assembly, but with some parts in it...

SolidworksAssemblies