Elementor Pro is a WordPress plugin that allows users to create custom page layouts and designs using a drag-and-drop interface. If the post excerpt is not displaying correctly, there could be a few different reasons why this is happening.
First, check to make sure that the excerpt field is being used in the template or layout that you are using for your posts. If the excerpt field is not present in the template, it will not be displayed on the front-end.
Second, make sure that the excerpt field is being populated for your posts. If the excerpt field is empty for a post, it will not be displayed.
Finally, check to see if there are any compatibility issues with the theme or other plugins that you have installed. Some themes or plugins may interfere with the functionality of Elementor Pro, causing issues such as the post excerpt not being displayed.
If none of these solutions work, you may want to consider reaching out to the support team for Elementor Pro for further assistance.