Problems with landscape material

I want to use landscape material from mudular cliffs asset pack and in review map it’s looks awesome but when i load it on my landscape it’s looks weird, i do not understand where is the problem

Can you please show how you want it to look (make screenshot of "review map ") So we can compare and see what’s wrong?

i cannot even see your landscape , are you sure your landscape is visible , it seems like your landscape is not loading , are you using Streaming or something like that .
Check these two things
Actor Hidden in Game for your landscape ,
and Level Streaming if you are using any .