This should be already fixed in 4.1.3 isn't it?

nope .. the ss is from 4.1.3

I'll check it. I thought I had fixed it last time :)

See if you have better luck with this version of /inc/sessions/model/_search_engines.php

http://pastebin.com/raw.php?i=yJemKkSY

Tried the new version, the problem persists.

[url=http://postimage.org/image/ynuq7hget/]http://s10.postimage.org/ynuq7hget/CC2_Clipboard01.jpg[/url]

Would you mind if I connect to your server and grab a couple of facebook referrers, just so I could test it on my side?

sam2kb wrote:

Would you mind if I connect to your server and grab a couple of facebook referrers, just so I could test it on my side?

Sure, suit yourself.The info is the same i sent you the last time.If you lost it just pm me again and i will send you details.

Try this fix.
Edit /inc/sessions/model/_hit.class.php line 1283
replace

if( empty($key) )
{
	return false;
}

with

if( empty($key) )
{	// Not a search referer
	if( $this->referer_type == 'search' )
	{	// If the referer was detected as 'search' we need to change it back to 'referer'
		// to keep search stats clean.
		$this->referer_type = 'referer';
	}

	return false;
}