I uploaded clean files yesterday before sending a link. The only options I see in Scan Database are:
- Check for and create missing thumbnails
- Rebuild all thumbnails
- Check and rebuild all preview images.
- Check here to watermark unwatermarked files.
- Check here to recalculate product numbers and check children.
- Check here to resync product/reviews usernames/update comments counts.
- Check here to resync reviews counts on showcat page?
I assumed you were referring to #6 and I ran it with the same result, no Average Rating.
Where is the "Allow rating" option that you referred to? I've looked through all the options several times and do not see it.