Hi,
Sorry for the issues here. We introduce some coding from 4.0 and it is causing this issue.
We are working on a release, but downgrading The Events Calendar to 3.12.3 and Community Events 3.12 resolves this issue for now.
Filter Bar can stay at 3.12.1.
To downgrade use this link to download The Events Calendar 3.12.3:
https://downloads.wordpress.org/plugin/the-events-calendar.3.12.3.zip
You can download the older versions from your account here on theeventscalendar.com.
Once you have both zip files follow this guide to manual plugin changes:
Manual Updates
Let me know how that works out.
Thanks