We are having a problem when turning overprint preview on in InDesign CC 2015, specifically when we are placing a pdf file that is scanned off of our Ricoh copier. If you try to turn on overprint preview, the application will crash.
This was not happening with previous versions of InDesign at all. This is happening on multiple machines all running 10.11 and CC2015, from imac 9,1 up to a brand new 5K Retina. Any help is appreciated.