1, version mismatch: qq Hangzhou Mahjong game version is incompatible with props, and may not work properly.

2. Network problem: props need to communicate with the server for verification, and the network connection is unstable or there is a problem, resulting in the props not being used normally.

3. The props are invalid or expired: some roads have service life or restricted conditions, and the props have expired or do not meet the use conditions, so they shall not be used.

4, account problem: QQ account is abnormal or restricted, which will lead to props can not be used normally.

Qq Hangzhou Mahjong is a mahjong game developed by Tencent. The game is based on the rules and gameplay of Hangzhou Mahjong, providing online battles and various game modes. Players can log in to the game through QQ platform, play against friends or other online players, and experience the fun of Hangzhou Mahjong.