This is hard to explain, but basically My boss recieved a printing proof from one of our vendors and forwarded it to me (Graphic Designer) and the Account Manager. I looked at the proof on both my and the Manager's computer and it looked good to me. We just recieved the final product and one spread out of 20 has a weird white box around both pages. I checked my proof and it's not there but my boss checked his version of the proof and the box is there! Could a path somehow be completely deleted from emailing a pdf? We opened both in Illustrator to confirm his has a path there and mine does not, but it is the exact same file.
Here is an example of what the file looks like for me, the version that printed has a white line in between the two red lines that goes all the way around both pages.
Oh yeah, and I submitted the print files as individual pages so theres no way I could have applied a box around two pages like that.
Thanks in advance for the advice or a more applicaple place to ask!
Your FPO lines may not have been set to overprint so even though you might have them specified as a spot colour you did not not print, it would have knocked out everything behind it to white. Can you upload the PDF?