I have nothing important to add to your problems with possible corrupted files, but I’m very interested in what your final conclusion will be.
I’ve been struggling with printing problems that are similar to your photo attached to this topic. Much of the time my prints look very much like your photo. I have found that my old Epson printer is still very capable of outstanding prints, but I’ve been unable to determine why this is happing most of the time.
My current thinking is that I’m printing from a corrupted RAW file. Please keep me in mind, as you solve your issues.