After updating from build 18359, on the MAC, use OPTION + mouse click on a star which can" show only that star rating image."
In the pages that show images with that star, The scroll bar will Scroll from the top to the bottom, very annoying when you have more than one page images.
If you are using Mac and the newest version PM, just hold the OPTION key and click the bottom right corner's star(may be one star or 0 star) if you have images with that rating and more than one page will see what I mean.