Retroarch does not work anymore on Steam. Black screen

Hello, I was playing with Retroarch through Steam normally, trying to put some shader presets and testing them without problems in PSX games. I stopped playing and when I came back after a while Retroarch does not work. Once I hit Play on Steam, it remains a black screen until the program closes by itself.

I have deleted the configuration files, uninstalled and reinstalled retroarch several times, but it still doesn’t work. I have not changed any options other than those necessary to make the famous shader bezels work.

There is a solution?

If removing the retroarch.cfg didn’t work, we would probably need to see a verbose log to know what’s going on. https://docs.libretro.com/guides/generating-retroarch-logs/