InDesign Background not appearing in Acrobat Pro

I just wasted a couple of hours troubleshooting this - 
I created a document in InDesign that has a black background on the first page, behind an image and white text. After exporting the document, the background did not display in Acrobat Pro - although it did display in Acrobat Reader and Mac Preview.
It turns out that there's a new Accessibility setting "Replace Document Colors" (that includes replacing page backgrounds), which was turned on by default (at least in the version I had at the time, which I auto-update).

I don't know if that new feature ships activated by default - I didn't turn it on myself -  but it's troubling to know that there are folks out there who will be unable to view the document as created because of this invasive Adobe "improvement."
I wish I could get those 2 hours of my life back.
If you have this issue:
Go to Acrobat>Preferences>Accessibility> and uncheck "Replace Document Colors."