I am also experiencing the same issue, WP Full Calendar will not display. I am also running Autoptimize (v 2.8.1) and there seems to be a conflict with that plugin.
When I deactivate the Autoptimize plugin, the calendar works properly.
Try that to see it it resolves your issue. The issue seems to lie in one of the 2 plugins, likely Autoptimize.
first try with Autoptimize disabled for that request by adding ?ao_noptimize=1 to the URL. if the problem is gone, try to identify what is breaking things by just disabling CSS or JS or HTML or Image optimization (incl. lazyload). Based on the outcome of that we can see what the next steps need to be 🙂
frank (ao dev)
Thanks Roger and Frank for the suggestions.
I’ve tried to disable Autoptimize as mentioned, tested and no difference. I then deactivated it and hard refresh, no difference. I also disabled CSS and Javascript in the browser and tested, no difference. FullCalendar still wont load.
Tried WP Safe Mode with default theme, still getting same two javascript errors.
jquery.qtip.js:3485 Uncaught TypeError: Cannot read property 'replace' of undefined
at dayOfMonthFormat (jquery.qtip.js:3485)
at Function.<anonymous> (jquery.qtip.js:3485)
at Function.each (jquery.min.js?ver=3.5.1:2)
at o (jquery.qtip.js:3485)
at Object.<anonymous> (jquery.qtip.js:3485)
at e (jquery.qtip.js:3485)
at Object.<anonymous> (jquery.qtip.js:3485)
at e (jquery.qtip.js:3485)
at Object.<anonymous> (jquery.qtip.js:3485)
at e (jquery.qtip.js:3485)
jquery.min.js?ver=3.5.1:2 Uncaught TypeError: $(...).first(...).fullCalendar is not a function
at HTMLDocument.<anonymous> ((index):472)
at e (jquery.min.js?ver=3.5.1:2)
at t (jquery.min.js?ver=3.5.1:2)
Not sure what to try next, anyone else run into this?
We have the same problem. The calendar won’t display at all. It was working great, then sometime in the last few weeks (months), it just stopped displaying. Please help!
hello, can you try using WP Safe Mode (a plugin I wrote) to see if this is a plugin conflict? You can disable themes/plugins only for you, your visitors won’t see a difference.
a link may help too, it should work on the latest WP versions
regarding Autoptimize issues, see this thread – https://ww.wp.xz.cn/support/topic/events_fullcalendar-will-not-display/#post-14087982