I'm new to Blender and newer to the community. Please be kind with my ignorance.
I've created a landscape mesh with the True Terrain addon, looks really nice, but when I place the automatic textures of the addon it put them on the other side of the mesh. I've tried not using the texture given and add one with the shader editor, same issue. Also the normals of the mesh are facing the right direction. I've tried flippin them just in case, and same problem. Another thing to happen is when i render on cycles the mesh it's all streched and looks like a mess, works nice with the displacement off, but the texture still inverted. Experimental render and displacement and bump options are both checked.
I've tested this with Blender 2.83 and 2.9