[Smush Pro] Missing directory to smush

Hi.
I've ran the bulk smush on my website and Google Page Speed Insights now shows less images that need optimising. However it is still showing that I need to do a lot of images in my 2017 uploads directory. I have clicked the recheck-images button but Smush says that everything is done and up to date. I also have the "smush my original full size images" option set but that doesn't make a difference. I've also looked for that directory under 'Directory Smush' but it doesn't appear. Can you help please?