Hi Caroline
This is the url of the website under construction. https://cube.sojo.io/. The website was almost complete before starting this process.
I switched to twenty sixteen, and deactivated all other plugins. The problem with the calendar view was resolved.
When I switched back to my theme (Quill) the problem happened again, so to start with I guess there is a conflict between Quill and Event Calendar PRO.
Also – when running in Quill (I think as a result of the pop up info box not showing) I seem to have a nasty horizontal scroll bar which appears when you hover over any event.
FYI the plugins I am running at present are:
Akismet
Checkfront Online Booking System
Contact Form 7
Duplicator
Jetpack
Page Builder by Site Origin
Postman SMTP
Simple Custom CSS
Site Origin Widgets Bundle
Toolset Types
Wordpress Importer
Are there any known conflicts with these plugins?