The other day I took a series of photos. When I imported them into Lightroom, I discovered in the shadows portion transition was heavily pixelated. I opened the same photo in Lightroom Develop module, the problem was largely gone. When I went back into the library module, it was there again. I open it in PS CC looks fine! I save the tiff and transfer it to LR5 is fine. I open it in Aperture is fine too.
I tried to delete all the photos and reload them. Same problem. Subsequently, I took some other photos. Almost the same setup, but the problem will not come back.
It may not be a problem. But it irriterre me that I can not figure out what the error is. Hope you can help.