Black screen within the game with the technical preview deferred

So, when I entered my world with the technical preview enabled, the screen went black and I couldn't see anything. This is only happening on cell phones, because I have an Xbox series s and the shaders They work very well and there is no black screen in a world 

1 to reproduce it just apply a PBR texture to your world 

2 enter the world

And

3 walk around a bit with the texture on