Printing line thickness. The line thickness is not correct in Print Preview. 

— Make sure that the “Print Lineweights” option is selected in the “Print” dialog. 
If the line thickness is set in the Ctb print file: 
— Make sure that in the Ctb file the right thickness is also configured in relation to colours. 
If the line thickness is set in the Stb print file: 
— Make sure that in the Stb file the right thickness is also configured in relation to the styles.