PDFs have black background, weird coloration/pixels around graphics/logos in Acrobat Reader DC

EDIT: I opened acrobat Pro to test and... now I can't reproduce the issue in reader or anywhere else so I guess we can close this thread before anyone wastes their time on it. Thanks. 

Any PDF I open, whether it's a scan or rendered or whatever, as soon as I move the cursor over the page, the background turns black. The text remains slightly readable sometimes, and any whitespace in a graphic like a logo, is also filled with black. There are these weird color squares around evreything. Sometimes when I click elsewhere within acrobat, the page goes back to normal for a second, but as soon as I do something else, black again. A weird thing is that when I scroll, the parts of the PDF that were offscreen are still white or whatever the appropriate color, until I move the mouse again that is.

I've tried common suggestions in preferences, including page display >smooth text settings and resolution and accessibility > replace document colors. Please help me fix this. 

Here's a screenshot of the problem.