My grass suddenly disappeared

So in unity i was making some terrain and practicing on texture placement. I placed trees and some grass etc etc.

I was holding Alt+Middle Click and i accidently pressed middle click several times cause the button is a bit loose. So when i did that i noticed my grass disappeared. I dono if i maybe pressed something else other than alt but whatever i pressed i CANNOT get my grass back.

Another thing i noticed is when i make hills they are now jagged. While holding left click to make the hills theyre smooth but as soon as i let go they render with jagged edges. I think its tied to the grass missing problem (trees show fine).

Render distance is all the way up in the options