Why did Ecuador leave Gran Colombia in 1830?

Ecuador seceded from Gran Colombia on May 13, 1830, primarily due to protracted regional rivalries and the broader instability affecting the confederation.12

Following the wars of independence, Gran Colombia suffered from intense civilian and military competition for public office and deep-seated regional jealousies. These tensions, which had already triggered a rebellion in Venezuela as early as 1826, made it increasingly difficult to maintain a unified state. By 1830, the central authority led by Simón Bolívar had weakened significantly; his attempts to reorganize the republic through a new constitution failed to gain recognition outside of New Granada (modern-day Colombia and Panama). As the central government’s influence waned, Ecuador broke away to establish itself as a separate, independent republic.3412