Have investigated the extension KISS Advertiser with the wonderful cooperation of its developer and was able to find the culprit. What is happening is during the Email function of KISS Advertiser the CB $user object (which is handled by reference) is being overwritten from one via database. The below quick fix will resolve the issue (confirmed locally).
IN: components/com_ksadvertiser/ksadvertiser.php
ON: Lines 1072-1075
FROM:
Code:
$user = $db->loadObject();
$usermail = $user->email;
$username = $user->username;
$userreal = $user->name;
TO:
Code:
$usr = $db->loadObject();
$usermail = $usr->email;
$username = $usr->username;
$userreal = $usr->name;
There maybe other issues elsewhere regarding the same scenario, but have relayed the information to the developer as well so similar issues can be addressed.