I George, I got the same issue with the menu, I’ve installed the plugin Enable JQuery Migrate helper and actually the menu was working again but got so many other issues with the theme, slider wasn’t work anymore plus some other little issues.
Is That plugin Migrate the only thing I could try?
Do you know other stuff to solve the problem
Thanks
Oh I forgot, there is also another issue after the upgrade, in the events page the date swithc is no longer working I can chage the month
thanks again
