Player stands on circles, unable to walk

I want to have large circles, as i am going to make a game, but players dont walk on them, they literally stand on top of them like a regular square block part. I tried fixing this but nothing worked. Do yo guys know how to fix this bug?

try making it not collide? I don’t understand by

This is due to the imperfections of the mesh due to very large sizes. You can use your own sphere mesh or use terrain if you really need this functionality. You can also use a SpecialMesh to scale the sphere up.