你可以试试这个。

步骤1：

Go to Appearence --> Widgets

Then at the top right of the screen you should see a tab that says Screen Options. Click on that, then a link will appear in the top left of your screen that says ‘Enable Accessibility Mode’ and click on that and give it a try.

这是一个老问题，但最近我遇到了一个类似的问题（WordPress 5.3），解决方案是启用辅助功能模式（右上角）。