Single Status Update
Ok it looks as if the CSS Pseudo-Elements for fontawesome were not working on all versions of CE. No idea why it could be they have droped them from the free version. If anyone knows why then post please.
To fix this have added a class option so all you do is add the fas fa-chevron-up or anything else in admin and all should be good. Use only one option class or CSS Pseudo-Elements not both.