I'm trying to remove paragraph rules from paragraphs in an InDesign document, but cannot because it (incorrectly) says they're already turned off

So, basically what a title says. I'm working on a document for my employer in which some of the formatting is already in place. As part of that formatting, InDesign is adding horizontal rules after every paragraph, and there are some paragraphs for which this would not be appropriate, particularly bulleted lists, so I'm attempting to remove them. Problem is, when I select the paragraphs and pull up the Paragraph Rules dialog, it claims that the horizontal rules area already turned off, and that I therefore cannot remove them. Does anyone know what's going on or how to fix it?