GraphQL can make it tricky to connect the front-end and back-end of a website. Here are some reasons why:

1. Learning Curve: Developers need to learn a new way of asking for data, which can slow down how quickly they work as a team.

2. Performance Issues: If the requests for data aren't done well, they might ask for too much or too little information. This can slow things down.

3. Schema Management: Keeping track of how the data is organized can get hard, especially as the application gets bigger.

To solve these problems:

• Spend time training the team and giving them helpful resources.
• Use tools to monitor and improve how the data requests are working.
• Have a clear plan for keeping track of changes in data organization and for writing down important details.