My bf had this problem too. I think he reset his UI, kept it on medium font and reloaded the game. So far no issues as long as he doesn't change the font size. He went ahead and changed some of the UI around again just didn't bother with the font size. We are fairly certain that resetting the UI isn't required, but as long as you change the font back to medium and restart the game, hopefully it'll be fine. Hope this is at least a temporary fix.