Light and shadow bug

Hello, i recently had a huge graphical bug while using a shader. Since then, I no longer have any light or shadow plays on my game, regardless of the configuration, version, shader or texture packs.

I deleted the folder . Minecraft and downloaded it again. Nothing changed.

Nothing has changed in the settings.

I contacted Minecraft support, and upgraded my AMD drivers, still nothing changed.

I send you a video of the bug and photos of my problem that follows.

Thank you