What prompted montezuma to object to Cortes's actions?

Montezuma objected to Cortés's actions because he perceived the Spanish conquistador as a potential threat to his authority and the stability of the Aztec Empire. Initially, Montezuma believed Cortés could be a fulfillment of a prophecy regarding the return of the god Quetzalcoatl, but as Cortés's intentions became clear—particularly with the seizure of gold and the disregard for local customs—Montezuma recognized the danger posed by the Spaniards. This shift in perception, combined with the growing tension between his people and the invaders, led to his objections and efforts to manage the situation.