Differences in musical concepts and commercial interests.

1. Different musical concepts: The members of the Crystal Castle Band have different musical concepts, resulting in inconsistent creative directions and the inability to form a unified music style. Such disagreements can lead to barriers to cooperation among members and ultimately lead to dissolution.

2. Commercial interest considerations: The music market is highly competitive, and Crystal Castle Band faces commercial interest considerations. The band's inability to achieve desired results in business will affect the members' confidence and motivation, leading to disbandment.