Here’s a common problem :
When you use gnome icon browser and don’t find the icon you want in the default pixmaps that the browser shows, you try to use the “browse” button and then you browse directories searching the icon you want.
But even if you are sure there is icons in the directory that you have selected, you can’t see them and hihlight the one you want. Normal. The “browse” button is just here to select a directory where the icons are, then you can see them in the icon browser and pick the one you want.
Two people in two days ask me the same question, and I’ve seen many people with this problem before (even me few years ago). So should we consider this as a bug and post it to gnome devs ?