Drag and Drop state changes
I created a drag and drop activity where you drag 8 ovals onto 8 pictures. If the oval is dropped correctly, its state changes to hidden. When the oval's state is hidden, the corresponding picture's state changes to "correct". Everything works correctly in the initial attempt.
However, in subsequent attempts moving certain ovals (that were dropped incorrectly) causes another oval that was dropped correctly to change state from Hidden to Normal. This makes correct answers appear to be wrong, and worse, allows them to be moved from the correct position.
After much troubleshooting, it seems that moving an incorrect oval seems to effect the next oval if it was dropped correct. For example, if oval 2 was dropped correctly and oval 1 was not, moving oval 1 in the next attempt causes oval 2 to change states to Normal. Moving oval 2 changes oval 3, oval 3 changes oval 4, etc. In the attached file I have moved the ovals so that they appear in order 1-8 and line up to the picture they match. Anyone have any ideas why the states would change?