I thought this was a bug when I found it today. The language moodle uses doesn't help - "hide advanced features" implies they can be shown again later. It looks like a viewing choice, rather than a data-changing choice. "delete advanced features" might give more warning! It's very easy to delete a lot of work at the click of a button as it stands. I don't really see why you shouldn't be able to toggle between a "simple" and a "complex" view of your data - basically being able to toggle categorisation on and off could be useful depending on whether you wanted to look at the whole spread of data or individual sections.
Switching from advanced grade preferences deletes changes
This discussion has been locked because a year has elapsed since the last post. Please start a new discussion topic.