Incorrect symbols displaying for dropdown menus, search button, and next page bx

I finally updated to the latest version of wisteria and I noticed that the dropdowns for the page list at the top of the page, the search button, and the next page box at the bottom all display the wrong symbol. The dropdowns and next page box should be arrow head symbols like > and v and the search box should by the magnifying glass. Instead, these all display squares. The last version that I used didn’t do this, although I think 1 or 2 came out since the last time I updated.

I do make some minor color changes for my site, but I uninstalled and reinstalled the theme so that the original css etc would be there and the problem is there even without me changing anything in the theme.

The page I need help with: [log in to see the link]