I am unable to merge raw (.NEF) images in Lightroom CC as the option is grayed out.
Merging JPEG images works fine.
I have reset my Lightroom preferences, but this didn't fix the issue.
I am using Lightroom CC, on a Macbook OS X 10.11.
Hope someone can help.
Sorry folks, I just realised that my external HDD was not connected properly.
In other words, I was trying to merge Smartpreviews! Doh!
Retrieving data ...