App Sweep window often hidden

Hi, I'm finding that the App Sweep window often doesn't steal focus or it somehow remains hidden under other windows, and I don't know it's there. It's only when I restart my computer that it appears, as apps that were in front of it quit. It's frustrating to see it briefly and not to be able to restore it after restart. Is there any way to re-run App Sweep so that recently uninstalled apps can be cleaned up? Thanks, fort