by Ken Task.
Don't understand this:
"I used the script from Moodle 1.9"?
The health check exist in 3.10!
Am not a quiz expert. As far as those things not fixed or the check suggested post in forms, the forum where one would find quiz experts is:
https://moodle.org/mod/forum/view.php?id=737
Maybe moderators of 'backup and restore' could split your last posting off and create a new one in the Quiz forum.
If not, repost there.
'SoS', Ken