we encountered the following issue when updating a moodle 1.9.12 via moodle 2.2.4 to a recent moodle 2.3.1. and then backingup/restoring to a different native moodle 2.3.1 (same code):
In moodle 1.9.12: choices are filled out, responses are displayed correctly.
In updated moodle 2.3.1: choices are there, responses are displayed correctly.
After backup/restore to a fresh moodle 2.3.1 installation: choices are there, but no responses are included. New responses can be made, and the new ones are displayed correctly.
Any idea, why I lost responses during backup/restore in the same moodle version?
In addition to that, the order of choice options is mixed up after backup/restore.
Best regards, Marcus