Hi Michael,
Thanks for reaching out! I definitely understand not wanting to disable things on your live site – you can actually use the WP Staging plugin to create a quick copy of your live site that you can use for testing.
I took a look at the page, and it looks like there are a few issues there (the date fields are skewed and the organizer field is missing). For that reason, I think there may be a conflict somewhere, so unfortunately testing for conflicts with your theme and other plugins would be the next step here. I know it can be tedious, but it really is the best way to start narrowing down the source of the issue.
Let me know what you find out!
Thanks,
Jennifer