My terrain is shinny like if the smoothness was set to 100% but its not, and i cant change it

My terrain is shinny like if the smoothness was set to 100% but its not, and i cant change it

my version of unity is: 2022.3.13f1 LTS


it hapenned after i change the target platform from windows to android

when i create a empty terrain this doesnt happen, but if i create a layer on it, the proble happens again

Shininess on the Terrain shader is controlled by the texture alpha channel: 1.0 is shiny, 0.0 is dull.