Hi Jeffrey.
There are a couple of possibilities here. One is that another plugin (or some code in your theme) is filtering either the post excerpt or content. If you’ve got any Twitter/Social Media related plugins, they are likely candidates so it could be worth following our standard troubleshooting steps:
- Disable all other plugins
- Revert to a default theme such as Twenty Eleven
- In the (hopefully unlikely!) event that you or someone else has modified the view files (templates) in the Events Calendar plugin directory, you should restore these to the defaults
Check and see if that removes the extra text – if it does, reactivate everything one-by-one until you discover what’s causing the problem.
Alternatively, it could be that this additional text has been inserted in your custom events/table.php template – opening this up and searching for the word “Tweet” using your favourite text editor would be one way of checking for this.
Hope that helps!