Hello Adam!
Just wanted to share with you that a new maintenance release (for the Week of 16 October 2017) is out, including a fix for this issue 🙂
Find out more about this release → https://theeventscalendar.com/maintenance-release-for-the-week-of-16-october-2017/
Please update the plugins and let us know if the fix works for your site.
Best,
Victor