Drag and Drop

Detailed steps to reproduce the bug (exactly how and when did it happen)

• I am creating a new Drag and Drop. I've created my drop zones and am now adding my drop text and selecting relevant drop zones. 
• After I save, I go back into the Text and it has selected additional or different drop zones. If I deselect and save and go back in again, the addition ones are still selected.

Platform and version number. E.g. Drupal, Wordpress, Moodle.

We are experiencing issues with the Drag and Drop exercise function. The problem is that correct results are shown in a purple colour.

We are experiencing issues with the Drag and Drop exercise function. The problem is that correct results are shown in a purple colour.