Hi Dominic,
Thanks for reaching out to us! I’d be happy to help you 🙂
Well, it seems there’s a conflict somewhere. Could you try to deactivate all plugins (except for TEC and PRO) to see if that makes a difference? Also, could you switch back to the default theme (Twenty Seventeen) and have a look again at your upcoming events?
I’d recommend you to read our article about how to test for conflicts first. You can also use a tool such as Plugin Detective to make things easier.
Please let me know how it goes.
Cheers,
Jeremy