Hi everyone!
I'm busy making changes to CodeWorld, to make it faster, easier to use, and less error-prone for students. [1] Some of these changes may require that you refresh the page in your browser to pick up the latest code. So if things seem broken lately, try a Ctrl-Refresh and see if that fixes it quick. If not, you can report the problem with the new "Report a Bug" button at the bottom of the screen.
Thanks,
Chris