Please refer to this person’s article for more details, and try force reload.
For users of paid and free templates
A particularly common process is to hide the version information below, which is also a security measure for WordPress.
When the above process takes place, the old information remains in the browser’s cache, so it often happens that the screen is in a strange state even after updating the QA heatmap plugin.
In this case, please try to force reload your browser.