Bug GTX 1660 Can open/download RTX Ray tracing map

I got new GPU GTX 1660 TI At that time I'm so bored, so I go in marketplace. Then I see RTX Maps I know my GPU Just Only 1660 RTX Maps requires 2000+ But I click in and then, I saw somethings Top right It White not Gray! I don't know what I'm thinking I click That White button Then It change from Free text to Download. I click again and after it finish download I Create RTX World. I login the world, But the world that I saw. It all black but not with sign it character is bright. I think it a bug so I quit world and join again. Noting change, World black sign character bright, So I quit and take out RTX Recourses pack and join again. Same all same, So at this time I turn Ray tracing off, After I turn Ray tracing off all normal I see world I will cap picture for you Microsoft FIX THIS BUG!