Copied blocks won't get destroyed on touch?

Here is my code:

EDIT: Changed the code to this, did not fix it.

function onTouched(hit)
    if hit.Name ~= "Slime" and hit.Name ~= "Baseplate" then
        if hit.Name == "Cannon Shot" then
            script.Parent.ExisHealth.Value = script.Parent.ExisHealth.Value - 1
            hit:remove()
        else
            hit:remove()
        end
    end
end

script.Parent.Touched:Connect(onTouched)

Basically if the slime ball hits a brick, it should destroy it. This works well, except when I copy a brick using a copy tool, or even copying in the Explorer while testing the game. The slime balls simply bounce off the copied brick without doing anything. They still will destroy/remove the original, but none of the copies.

Any suggestions?