I just upgraded to the most recent version of Lightroom. I used to be able to set the filter to all the "rated" photos, then export them one by one by stepping through the images with the right arrow key. Now, after I've exported the first image, the filter is removed and I cannot simply move to the next image I want to export by using the arrow key. I have to find the next rated photo and then export it. It's annoying since I have to lift my hand from the keyboard to the mouse, or press the right arrow key multiple times until the next rated photo is reached. This is different from the behavior in LR 5, and is very annoying. I can't batch export because each photo needs different export settings. Anyone know if there is a better way of doing this export, or is this bug, or is this something I just have to live with?
Hmm, I'm not able to reproduce that. You might try reseting LR's preferences -- hold down Alt/Opt+Shift and then start LR, and you'll be prompted to reset them. That often fixes wonky behavior in the user interface. (You will have to set all your preferences again.)
Resetting the preferences didn't help. However, poking around in the menus I found how to fix the problem. I needed to set File -> Library Filters -> Lock Filters.
Interesting, I never would have thought of that. (But I always keep the filters locked -- it was always too confusing to me otherwise.) Glad you got it resolved.