Absolutely yes. Advanced Styles require that the character use only the weapon (or weapon and shield) configuration listed. This means that Scholar’s Sword style is not compatible with a shield. Likewise, Noble Paladin only works with a War Mace and a Small Shield; A hammer or sword is insufficient, and if the Paladin has their shield broken or lost somehow, they lose access to their Advanced Style powers, as an example. Advanced Styles are very strict in their requirements.