is there something up with lens distortion in the latest release. Just noticed that all three lenses I used on the last shoot seem to have warp in the top left corner. I had to to distortion down to 0 in the lens corrections panel. of course it could be my sensor has warped :/
Place provide sample raw files that demonstrate the issue you’re seeing so it can be replicated.
You can upload to http://www.dropbox.com/ and post a public share link to the file(s), here.