Before revision:  However, current ML-FFs typically ignore electronic degrees of freedom, such as the total charge or spin , when forming their prediction. In addition, they often assume chemical locality, which can be problematic in cases where nonlocal effects play a significant role.
After revision:  However, current ML-FFs typically ignore electronic degrees of freedom, such as the total charge or spin state, and assume chemical locality, which can be problematic in cases where nonlocal effects play a significant role.