Switching months won't show events

Hello,

I’ve been working on a website and have been using this plugin so show some events, but one of my users has noticed a problem.

When some users go to the page where the events calendar is shown, the current month shows perfectly fine, every event for this month shows. But when you switch months to next month, none of the events for next month show unless you manually refresh the page.

Any suggestions on how to fix this bug?

Thanks.

https://wordpress.org/plugins/the-events-calendar/