Some cache will be generated during the drawing process of the browser. When the browser cache is too large, this situation will occur when the solution is opened. If this situation occurs, save the solution first and then cache it according to the following steps:

If you're using Google Chrome.

1. The shortcut key to clear the browser cache is ctrl+shift+delete, or click as shown below

2. clear the basic and advanced respectively, and then close the browser to log in again (if you need to clear the password record, please check)