When scrolling through images in loupe view, using the mousewheel, scrolling / navigation stops when you get to a video file, and it is not possible to scroll in any direction Navigating past the video with arrow keys works fine, and mousewheel scrolling is then usable again (until next video file)I suspect it is related to the new "integrated" video player, since I never had this problem with Lightroom 3.xBug exists on both Windows and Mac, using Lightroom 4.1