We are redacting PDFs converted from PowerPoint. When we apply redactions, a block of color the same size and location of each redaction appears on every page. There is no background on the documents. I created redactions of different colors, and those different colors showed up on all pages when the redactions were applied.
We can find no explanation or fix. A workaround is to make the redaction color white which blends into our document but we want to not have the blocks show up. There is a forum question from 2012 with this question but no answer.