I'm trying to correct an issue with an automatic table of contents in Word 2013. Random white lines are appearing between certain headings and they don't seem to follow any kind of pattern. I've tried turning on 'view all characters' to see if there is some combination of keystrokes in the document text causing this issue, but there doesn't seem to be any inconsistency there. I've also reviewed the text 'style' before and after each heading and all of my headings (including those without the issue in the TOC) are preceded and followed by either 'Normal' text or another 'Heading'.
Here's a screenshot of the TOC with arrows pointing to a couple of the offending lines but you can see there are many more. I've tried copying a good table of contents from another doc, but that didn't work. I am at a loss. Help please!