Landscape material not working normal map displacement map

Hey guys, so i tried to connect different maps, like normal map and displacement map and ambient occlusion map.
Im trying to get a more realistic ground texture, for the painting of landscape, but it doesnt seem to work and i the opacity map for the stones need some work as well apparently.

Here you can see that the opacity map makes the rest of the textures see trough and that the texture doesnt have any displacement or normal map at all.
Does anyone have a clue? and the maps change once i connect the uv to the landscape coords node. the bottom one picture that has a displacement map changes from detailed to fully white.

bumping this hoping to get answer!

Researched and i see that this is harder to pull off than i tought.