Scene tab goes weird

$$anonymous$$, I dunno how came t$$anonymous$$s to happen i cant see anyt$$anonymous$$ng in my scene tab. but when I press play the game works perfectly but I see not$$anonymous$$ng in editor(scene) tab. I tried creating a new project and create new objects(cubes) but i see not$$anonymous$$ng but the move tool and the grid. sometimes I can see just the wireframe that originally draws over the shaded meshes. I also tried loading up some sample projects and only half of the terrain loaded. plus I even reinstalled unity but no luck.