My co-worker is having trouble after upgrading his Camera Raw to 9.12.1. Prior to this, it worked fine, but now the histogram and preview window colors are overlayed with an odd blue color and the image preview is completely messed up.
Yes, those are orange pumpkins....
Here is the RAW editor zoomed out to better see the blue "overlay"
When you "Open Copy", it opens in PhotoShop with the correct colors: