Hi Geoff,
Sorry for the late reply!
The issue is not related to being able to change month, but to no events being loaded when moving to the next month, even moving from October to November then back to October, October is then empty. To get them to appear you need to refresh the page. As far as I have tested this does occur in all browsers, let me know if there’s anything I can do to help.
I have looked at the conflict testing, but this would really be a last resort on the live site, as I can’t really change the theme and disable plugins as the site would become unusable!
Obviously if we can’t find a solution then I will find some sort of solution to be able to run this testing.
Thanks for your time ! 🙂