I had Bicubic 2.5 ultra as one of my .mcpacks activated for a good while throughout the lifespan of 1.16 updates. Up until just today, when I updated the game in my windows store library and ran it. My world had vanilla lighting and a blinding white skybox. I left the world, deleted the pack, reinstalled it, same issue. I searched for the latest version of the shader and installed that (Bicubic ultra 2.7), still the same problem. So are literally all bedrock shaders right now broken, in the same update that added RTX support ironically?