I have been doing some testing and I found the following:
I can onlycreate an Activity or Resource on the Home Page and not within a Course
When in a course and Activity Chooser is Off, the link on the right with +Add an Activity or Resource is not clickable.
When I change to Activity Chooser is On, the +Add an Activity or Resource disappears and I get the traditional two drop down menus to choose either from Activities or Resources.
Choosing from either of these yields nothing, nothing happens.
I am logged in as the Global Site Administrator
Only when I am on the Home Page, is the +Add an Activity or Resource link active within the Main Menu Block.
In a Course this link in the Main Menu block is not clickable.
Is this a Settings or permissions issue?