As you may know, we’ve had a long-standing issue of ghost words in community-created courses. When an item was missing a translation or an entire line or level was blank, the system would fail to launch Learn New Words.
To resolve this issue, we’ve done two things:
It is now not possible to create a ‘ghost word’. When adding items to a course, both the ‘test with’ and ‘prompt with’ items must be entered before you click +. If you don't have both when you click on the + button, the item will not be saved.
All previous ghost words have now been removed to allow courses to launch properly, but don’t worry, the removed words will still be stored in your Database tab and can be moved over to a level once they are complete.