2017a highlight/scrolling jumps

Just updated to 2017a and encounter this problem: when you highlight a file in, say the 'Current Folder' window, and you right-click for options, the highlight jumps to the file above (or below) the file I just highlighted! I am on Mac OS 10.11.3. A similar jump appears when scrolling in Editor: it jumps (back or forward, always opposite to the direction of scroll) one line when a scrolling is stopped.