Good evening Jennifer and welcome back!
Thank you for reaching out to us.
We are sorry to hear about messy display issue you have been experiencing.
I would love to help you with this topic.
In our most recent update, it looks like some of our users (including those using the X theme) have reported some odd display issues.
However, as you know, we do not offer support for our free plugin in this forum.
If you don’t mind, in the future, for any bug could you please post your questions over here: https://wordpress.org/support/plugin/the-events-calendar ?
In fact, I believe, you will find the solution you are looking for over there: https://wordpress.org/support/topic/problem-after-update-plugin-event-calendar-2?replies=4#post-8068853
For now, I will close this thread. Thank you for your understanding.
Best regards,
Geoff B.