If a shortcode has been added to display trips and trips are being displayed randomly then please follow the below-given steps to get rid of the problem.
First of all, please once verify the issue by deactivating all third-party plugins as third-party plugins conflict can be one of the leading causes for the uncertain behavior of your site.
If everything is fine regarding the third-party plugin, please add a shortcode under the shortcode block on the page (edited) where you are willing to add a shortcode.
Also, if the above-mentioned steps don’t work for you, please add a shortcode under the custom HTML block and preview the shortcode and update the page.
Note: Make sure that the WP Travel plugin you have used is of the latest version.
Further, if you have any queries, please submit them to our Contact page.