Player sometimes passes through ojects, bug fix

I am making a game that has a sphere as the player and lots of plains. sometimes the player passes through the plains when falling from a high place. Is there anyway to prevent this?

Usually means your sphere is travelling so fast that it can pass through a plane from one frame to the next. Either limit the speed of the sphere, or use a sphere cast.

How would I limit the speed and also what is a sphere cast? thanks

if u are using character controler thera are settings to change speed
also in PhysicsManager u can chage Solver Iteration Count