Studio Projects Administration: The "Save" button doesn't unclick and doesn't refresh the page / show a confirmation

Steps:

1. Go to the Connect site
2. Click “Studio Projects Administration” in the side menu
3. Click “Edit” next to one of the Organizations
4. In the Permissions section, change the Role of a User
5. Click “Save”

Expected Result:

Once the button is clicked, it "unclicks" and either refreshes the page, or shows a confirmation that the changes are saved.

Actual Result:

The changes are saved, but button doesn't "unclick" (stays in a frame) and there's no confirmation that the changes are saved (see video).