I recently upgraded from Lightroom 3 to Lightroom 5 in creative cloud. In Grid View, in Library, I always have an image selected and I can't seem to de-select it, so when I export a photo I also get a copy of the unwanted, yet selected image.
Also, I can no longer scroll through the images in a folder using the arrow keys. Instead I just keep toggling back and forth with the unwanted selected image.
Seems like there should be a simple way to fix this
Try deleting the preferences: Preference and other file locations in Lightroom 5. Note that on Mac, you'll then need to reboot your computer.l Sprinkling this magic fairy dust fixes a surprising number of problems.