Thank’s for the fix! Updating to 5.7.36, released yesterday, fixed the issue in my case.
Setting this in JobNotifications::sendEntryMail:122 solves the issue.
case 'media':
$filepath = Job_Postings_Helper::getFilePath( $field[ 'value' ] );
$attachments[] = $filepath;
break;
I’m not entirely sure, if the format of this meta field is intended.