Retrieving deffered uploaded images

[amjadniazi48]

i have uploaded multiple images with deffered binding and save them using this method
$project->save(null, post('_session_key'));
they are saved and i can see them on backend but when i try to retrieve them using sitesearch plugin everything in database model is retrieving but cannot get the images , following is my relation
$attachMany=[ 'postingimage'=>['System\Models\File', 'order' => 'sort_order'] ];
follwing is the code in sitesearch plugin for retrieving

if ($item->postingimage) {
                
                   return [
                       'title' => $item->title,
                       'text' => $item->description,
                       'text' => $item->price,
                       'text' => $item->brandname,
                       'text' => $item->name,
                         'thumb'     => $item->postingimage->first(),
                       'relevance' => $relevance, // higher relevance results in a higher
                       'model' => $item, 
                   ];
}

but when i print this model i got the following result

{"title":"gdsag","brandname":"Yamaha","description":"gdsga","price":5887,"name":"Rawalpindi",
"postingimage":[]}

everthing is there except images
Raise this issue on sitesearch plugin as well
OFFLINE-GmbH/oc-site-search-plugin#56