Lighting/Fog Bug with Shaders

The bug is really hard to explain with words, you’d have to look at my attachments, but pretty much if I’m using any sort of shaders resource pack and I go into any kind of menu whether that’s my inventory, pause menu, or a chest, as soon as I get out of that menu the game gets really foggy and takes like 5 seconds to go back to normal lighting and the fog to recede. This has never been an issue before the 1.16.100 update, I just haven’t reported it until now because I thought it would be fixed by now. I know this isn’t an issue I have to resolve with the 3rd party developers because the shaders were working just fine before the 1.16.100 update.