Problem with Membership Attributes

Good day

I am using the Membership 2 pro plugin and I have activated the Membership Attributes Addon however, I seem to be running into a problem now.

When I navigate to Membership >> Settings >> Membership Attributes

I enter in all my info for the new attribute however, when I click save attribute nothing happenes. (It's like the buttons for that addon don't work)

I have granted Support Access to my site in my WPMU Dev Dashboard

If you could help me resolve this I would really appreciate it