English is not my native language) When I installed Parallax, I was having a problem where it wasn't applied even though I followed all the procedures correctly. I was concerned about a mod conflict and even after uninstalling all mods except the essential ones and running them again, I'm still having the same problem.
Parallax_ScatterTextures and Parallax_StockTextures are also installed correctly.
The version of the game is 1.12.3