When I preview more than 2 images with a loupe the loupe will divide in 4 quarters. Not every loupe does, just some. I have emptied my cache and am updated to the last update. Very annoying and would appeciate some help.
I m having a similar problem, using the loupe in the preview window gives me three quarters blur and one quarter image, totally useless. Any ideas? I am using Version 14.1.1.274
I've had this issue for longer than I can remember, from several versions back. I've been hoping it would get fixed with updates, but just installed 15.0 and it persists.
EDIT: Resetting preferences as intructed by Sahil did fix the issue.