The version is lower, exceeds the limit, and has functional problems.

1. The version is lower: The version of Apple Music is lower, causing it to show that it cannot connect after sharing.

2. Exceeding the limit: There are many family members, which exceeds the limit of Apple Music, resulting in an inability to connect after sharing.

3. Functional problems: There is a problem with the Apple Music function of a family member, resulting in an inability to connect after sharing.