Folder not showing all content

I have a folder with +/- 2000 photos. In LR desk top when I click on it, it initally just shows about the first 64 photos. It takes a minute or so fro the rest to show. This happens every time I open the folder, and always opens to the same place. (64 photos). This is more of an anoyance that anything as the rest do show within. a minute of so. Also this happens just on this folder. It is a subfolder of my main photos folder.