I updated Acrobat reader DC, but still has the same problem for the Customized Sales Order I have and others that I created.

I went to the customized invoice and made some adjustments to the layout there and clicked OK, and went to preview and print and all changes worked.  It appears only to have problems with Sales order, even if I make a new one. 

I've run Verify and rebuild... I've run the "Hub" programs on the server and workstation.  Still unable to print or preview the changes I make to Sales orders.