Large PDF documents repeatedly and slowly flashing/flickering on and off
When opening a document with more than a 1,000 pages or so, the document will disappear for about 20 to 30 seconds and turn black. It then reappears for several seconds only to go dark again. The cycle repeats and there seems to be no way to fix it. This happens on an iPad Pro from 2017 and a newer iPad from 2021. Both are fully up to date.
iPad Pro (5th generation)