Why won't my games show up when I select runners?

I installed the PCSX2 runner for PS2 and the games aren’t there. I changed the installation folder to their location and it is always empty. I tried doing the same thing with dolphin and Nintendo games, and still no games. I used to use Lutris with runners some time ago and I don’t think it used to work like this. Did they change how it worked?

Are you using Lutris Flatpak?

No, I don’t think it is. I didn’t see it in my flatpak directory