Please note that in
Osclass v8.0.2, when you go to the
Admin - Manage listings and hover a listing, if that listing has comments, then you can view them.
The problem is that the query returns all comments, from all listings, not just the ones for the respective listing ID.
I suspect the problem comes from the function in
\osclass\model\ItemComment.php - Line 168
I hope it will get fixed in v8.0.3.
Thanks!