You’ve returned the avatars to behaving according to the true/false parameter setting but, unfortunately, you’ve still left the user name in on every tweet. Shoehorning the avatar and user name into every single tweet when it’s already in the header of the widget was obviously a pointless change. So, you’ve managed to unbreak part of what you broke. How about going for the brass ring and fixing the whole shebang by removing the user name too? As someone else said, “If it ain’t broke, don’t fix it.” The widget was just fine before you started tinkering with it. Feel free to put it COMPLETELY back to the way it was before your “Display Guidelines” change.