Hello,
When I click on a topic of a discussion I started, it shows the buttons for Edit, Lock, Publish etc
For the lock and publish button and trash button - the icons are displayed
For the Edit button some garbage text is displayed instead of the icon
I am guessing this might be font awesome issue
P.S. my site uses Font Awesome 5 Web & JS version with backward compatibility for font awesome 4 enabled. In the future I am planning to disable the backward compatibility for fontawesome4
Refer screenshot image