1. Network congestion: CF FireWire Festival is a very popular activity. At the same time, rushing to buy tickets or participate in activities online will lead to network congestion and excessive server load, resulting in users unable to successfully grab tickets or participate in activities.
2. Snap-up strategy: Snap-up activities need to be operated quickly within the specified time. The user's snapping strategy is unreasonable or the operation is not fast enough, which also leads to unsuccessful snapping.