With even a small increase in uncertainty in electron position, electricity would start to behave differently. Everything electronic, which depends on electron flow through very tiny conductors, would become unreliable as the electron flow would be unpredictable. Even basic light bulbs probably wouldn’t work.
Chemistry is the exchange of electrons between atoms. All molecular bonds happen through the exchange of electrons from one atom to another… so an increase in uncertainty would result in the bonds breaking down. Molecules would break apart, every material you think of as solid would disintegrate into its base atoms.
So, your rolling ball would cease to be a cohesive ball, and the surface it is rolling on would also cease to be.