What problems did Martin Luther have with Pope Leo X?

Martin Luther's primary issues with Pope Leo X revolved around the sale of indulgences and the perceived corruption within the Catholic Church. Luther believed that the selling of indulgences undermined the true essence of repentance and salvation, as it suggested that forgiveness could be purchased. Additionally, he criticized the Church's focus on wealth and power, which he saw as a deviation from the teachings of Christ. These concerns ultimately led Luther to challenge the authority of the Pope and the Church, sparking the Protestant Reformation.