Starting recently, when I open a PDF document (any PDF, sourced from MS Office products, AutoCAD, etc.) the image is randomly blacked out in some areas. It is not transparent areas only, what reads as black appears to be random to me. Image mode is RGB / 8 bit. I have not changed any setting in PS. I have noticed when I switch to CMYK the document reads correctly.
I am on Photoshop CC v 22.3.1. I believe I first noticed this issue when the application updated a couple weeks ago. I assume a setting has been changed or maybe this is a bug? Computer is less than a year old and fairly high performance Dell workstation (32 GB RAM, 5 GB dedicated video memory, latest version of Windows 10), so it should not be a hardware issue. Any help would be much appreciated.