I've checked every page, chose the header on each page and according to the header and footer tools, every header is the same. If you notice in the screen shot (screen shot taken with header chosen) some text is very light where some other text is much darker. I have checked the text formatting and all are the same, I have no idea as to why this is happening.
Now, lets throw a monkey wrench in, on one page where the text is darker, the water mark doesn't show up at all, yet on other pages where the text is the same, the water mark shows up. Yet again, in 2 cases the water mark is there but is broken, in other words part of an "a" and part of an "f" shows up but the rest of the word is missing.
I have gone through the document line for line checking it with the ribbon, looking for anything that might be out of the ordinary and everything, from what I can see is the same. I have no idea as to why this is happening