iPad mini 3 keyboard keys don't highlight when tapped

The keyboard on my iPad mini 3 does not register the keys being tapped the way it does on my iPad 4. On my iPad 4, the keys highlight briefly after they are tapped to guide your typing. I find this to be very helpful, however I can't figure out how to turn this feature on for my iPad mini. I saw one answer that said to turn off "Reduce Transparency" in Accessibility, however, when I checked my settings in my iPad 4, this feature is on and the highlighting still works. I don't know why this would make it stop working in my mini, but not my iPad 4, but, apparently it does. Both iPads are running iOS 8.1.3. I also tried to reset my keyboard dictionary as suggested by another person, but this did not work either. I am just looking for some other suggestions because I'd like to be able to keep Reduce Transparency on, especially if this does not deactivate the highlighting on my iPad 4.