I am having a similiar problem with the event registration widget where the link on the event is showing /?regevent_action=……… but this is not a valid link. If I add a more info link to the event that will link correctly but the event header link is not correct.
I am having a similar issue that the widget of the events registration link does not work. If I add a more info link then that will work but the title of the event is still clickable and that link is broken. Did you resolve this issue? If so, would you share your resolution?
Thanks
Laura