RTX gameplay Beta

I am using Minecraft Beta version for the RTX, and I would like to run my ESBC shader along with it, I had it working 2 weeks ago, but now when I load a new world, I have no shaders even though it states it is active in recourse pack, but all my trees and stones look like old normal version. Why can I use the Beta, and be able to have nice textures without loading the really bad RTX demos that only will allow RTX? I spent a lot of money 2080 Super in fact and want Minecraft to really pop like I was promised, in the game, not just a Demo. I want it in all my worlds, It is there, just not there at the same time. Why?