Toolbox components out of proportion

Hi,

There is an assembly made by someone with parts such as bolts, nuts, washers, etc. being retrieved form solidworks toolbox.  This assembly has been saved in a network drive. 

I've been told to generate an engineering drawing, but these parts seem to be 'out of proportion'.  However, when I track the original file and open it to check what's going on, I realized the toolbox components seem to have spontaneusly changed of size. 

Is this a bug in solidworks or is this a common problem with a known solution? Is there a 'one button' fix for this or do I have to go manually updating part by part?

Regards!

SolidworksAssemblies