1. Software update: New education students will update regularly, fix some known problems or add new functions. If you download the old version, some functions will not be available or some problems will occur.

2. Different platforms: Newly educated students support different operating systems, such as Windows, MacOS, iOS and Android. If the downloaded version does not match the operating system used, some problems will arise.

3. Network problem: If the network environment is unstable when the new education students download, the downloaded version will be incomplete or wrong.